{"id":1458,"date":"2026-05-27T03:10:24","date_gmt":"2026-05-27T11:10:24","guid":{"rendered":"https:\/\/www.trcrimp.com\/?p=1458"},"modified":"2026-07-25T23:58:51","modified_gmt":"2026-07-26T07:58:51","slug":"was-ist-schlauchpressen","status":"publish","type":"post","link":"https:\/\/www.trcrimp.com\/de\/blog\/what-is-hose-crimping\/","title":{"rendered":"Was ist Schlauchcrimpen? Komponenten und Funktionsprinzip"},"content":{"rendered":"<style>\n.entry-content{max-width:800px;margin:0 auto;padding:0 20px}\n.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:16px 0}\n.table-scroll table{min-width:600px}\ntable{width:100%;border-collapse:collapse;margin:20px 0;font-size:14px}\ntable th{background:#1a1a2e;color:#fff;padding:10px 12px;text-align:left}\ntable td{padding:10px 12px;border-bottom:1px solid #e2e6ea}\nh1{color:#0f3d5c;font-size:28px;margin-bottom:20px}\nh2{color:#0f3d5c;border-bottom:2px solid #0f3d5c;padding-bottom:8px;margin-top:40px}\nh3{color:#1a1a2e;margin-top:28px}\nblockquote{border-left:4px solid #2563eb;background:#f7f8fa;padding:16px 20px;margin:20px 0;border-radius:0 8px 8px 0}\nblockquote strong{color:#0f3d5c}\na{color:#2563eb;text-decoration:none}\na:hover{text-decoration:underline}\n.entry-content img{width:100%;height:auto;border-radius:8px;margin:20px 0;display:block}\n@media(max-width:768px){.entry-content{padding:0 20px!important}h1{font-size:22px!important}h2{font-size:18px!important}h3{font-size:16px!important}table{font-size:12px!important}}\n<\/style>\n<h1>What Is Hose Crimping? Components, Working Principle and Crimper Types<\/h1>\n<p>Hose crimping is a controlled manufacturing process that permanently joins a hydraulic fitting to a hose by radially deforming a metal ferrule around the hose and the fitting stem. It is not squeezing, crushing, or pressing in one direction. It is a multi-jaw radial closure that compresses the ferrule inward from every side at once, locking the fitting stem, the hose reinforcement, and the ferrule into a single pressure-rated assembly.<\/p>\n<p>If that sounds like more than a mechanical squeeze, it is. The finished crimp has a target outside diameter, a measurement position, and an acceptance window measured in hundredths of a millimeter. A crimp that &#8220;looks right&#8221; can still leak or blow off under pressure. That is why the question &#8220;what is hose crimping&#8221; is really three questions: what the process does, how the force is produced, and how the result is verified. This article answers all three, and closes with the crimper formats TRC builds for each hose class.<\/p>\n<h2>The Anatomy of a Crimped Hose Assembly<\/h2>\n<p>A crimped hose assembly has five working parts. Each one is a variable, and each one is a potential failure point if it is wrong.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Part<\/th>\n<th>Role in the assembly<\/th>\n<th>What goes wrong<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hose<\/td>\n<td>Carries the fluid and resists pressure through its reinforcement (wire braid or spiral).<\/td>\n<td>Wrong construction for the pressure; aged stock; contaminated tube.<\/td>\n<\/tr>\n<tr>\n<td>Fitting stem<\/td>\n<td>Slips inside the hose ID and forms the primary fluid seal against the inner tube.<\/td>\n<td>Inserted shallow or too deep; wrong stem series.<\/td>\n<\/tr>\n<tr>\n<td>Ferrule (sleeve \/ shell)<\/td>\n<td>Surrounds the hose OD and the stem. Deformed inward during crimping to lock the assembly.<\/td>\n<td>Wrong OD for the die; mixed-system ferrule.<\/td>\n<\/tr>\n<tr>\n<td>Die set<\/td>\n<td>The segmented tooling that closes around the ferrule and produces the radial force.<\/td>\n<td>Wrong die ID; worn profile; die from another system.<\/td>\n<\/tr>\n<tr>\n<td>Target crimp diameter<\/td>\n<td>The finished OD the ferrule must reach after crimping, per the hose and fitting manufacturer&#8217;s data.<\/td>\n<td>Not measured; measured at the wrong position; tolerance exceeded.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The hose, stem, ferrule, and die form a controlled system. The fitting and hose manufacturer publishes a crimp instruction that ties a specific hose to a specific stem, a specific ferrule, a specific die, and a specific target crimp diameter. Copy one variable to another system without validation, and the published target no longer applies.<\/p>\n<blockquote><p><strong>The short answer.<\/strong> A hose crimper does not &#8220;make the assembly work.&#8221; It executes a validated crimp instruction. The instruction is what makes the assembly defensible.<\/p><\/blockquote>\n<h2>How the Machine Produces Force Without Bending Anything<\/h2>\n<p>A hose crimper looks like it is crushing the ferrule. What it actually does is squeeze radially. Inside the machine head, a ring of segmented dies closes inward simultaneously, surrounding the ferrule from every direction at once. The force comes from a hydraulic cylinder, and the multiplication is what makes a small input produce a very large output.<\/p>\n<p>The principle behind that multiplication is <a href=\"https:\/\/en.wikipedia.org\/wiki\/Pascal%27s_law\" target=\"_blank\" rel=\"noopener\">Pascal&#8217;s Law<\/a>, established by Blaise Pascal in 1653 and published in 1663. A pressure change at any point in a confined incompressible fluid is transmitted throughout the fluid, undiminished and in every direction. Because pressure equals force divided by area, a small force on a small input piston produces the same pressure in a larger output cylinder, and the output force scales with the area ratio. The fluid must be incompressible. That is why the system uses hydraulic oil, not compressed air.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Machine class<\/th>\n<th>Input side<\/th>\n<th>Output side<\/th>\n<th>Practical result<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Compact hand-pump (TRC P10HP)<\/td>\n<td>~20 kg at the lever, amplified ~10:1 by the pump geometry.<\/td>\n<td>~60 kN at the dies (about 6 ton).<\/td>\n<td>Crimps small braided hose; field and low-volume use.<\/td>\n<\/tr>\n<tr>\n<td>Workshop electric (TRC P20)<\/td>\n<td>3 kW electric motor driving a hydraulic pump at ~31.5 MPa system pressure.<\/td>\n<td>1,370 kN at the dies (137 ton).<\/td>\n<td>Crimps up to 1-1\/2&#8243; 4SH; workshop production.<\/td>\n<\/tr>\n<tr>\n<td>Industrial (TRC P175)<\/td>\n<td>Larger pump and cylinder, higher pressure and area.<\/td>\n<td>8,300 kN at the dies (830 ton).<\/td>\n<td>Crimps up to 4&#8243; R13 mining hose.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><img decoding=\"async\" src=\"https:\/\/www.trcrimp.com\/wp-content\/uploads\/2026\/07\/blog40-factory_floor.webp\" alt=\"TRC hydraulic hose crimper factory production floor with machines\" loading=\"lazy\" width=\"800\" height=\"450\"><\/p>\n<p>That is why a 3 kW electric motor on a workshop crimper can generate 137 ton of radial force, and why an 830-ton industrial machine does not need an 830-ton motor. Energy conservation still holds. The distance the dies move is inversely proportional to the area ratio, so a small input force moving a long distance lifts a large output force through a short distance. The <a href=\"https:\/\/en.wikipedia.org\/wiki\/Hydraulic_press\" target=\"_blank\" rel=\"noopener\">hydraulic press principle<\/a>, patented by Joseph Bramah in 1795, is the same idea applied to industrial force multiplication.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.trcrimp.com\/wp-content\/uploads\/2026\/07\/blog40-p20hp_crimper.webp\" alt=\"TRC P20HP heavy duty hydraulic hose crimper in workshop\" loading=\"lazy\" width=\"800\" height=\"450\"><\/p>\n<h2>What Happens Inside the Ferrule During Crimping<\/h2>\n<p>When the dies close, three things happen at once.<\/p>\n<ol>\n<li><strong>The ferrule wall compresses inward.<\/strong> It grips the hose outer cover and bites into the reinforcement layer.<\/li>\n<li><strong>The hose itself deforms.<\/strong> The outer cover is pushed inward, the wire reinforcement is partially compressed, and the inner tube is squeezed against the fitting stem.<\/li>\n<li><strong>The stem&#8217;s serrations or barbs engage.<\/strong> In a no-skive design the stem bites into the inner tube; in a skive design it engages the wire layer directly. Either way, this forms the primary mechanical lock.<\/li>\n<\/ol>\n<p>When all three are correct, the finished crimp has a mechanical lock that resists pull-off, a pressure seal between the inner tube and the stem, and a clean deformation that does not damage the wire reinforcement. Get one wrong and you get leakage (seal failed), blow-off (lock failed), or a hose that passes the first pressure test but bursts early under impulse (wire damaged).<\/p>\n<h2>The Cold-Weld Physics Behind a Crimp<\/h2>\n<p>This is the part that gets skipped in most &#8220;what is hose crimping&#8221; answers, and it is the part that explains why a properly crimped joint is mechanically stronger than a soldered or brazed one. The <a href=\"https:\/\/en.wikipedia.org\/wiki\/Crimp_(joining\" target=\"_blank\" rel=\"noopener\">Wikipedia article on crimp joining<\/a>) describes the underlying mechanism in one sentence that is worth unpacking in detail: an effective crimp deforms the metal past its yield point so that the compressed material causes tension in the surrounding connector, creating high static friction between the parts.<\/p>\n<p>That sentence carries three engineering concepts. The first is the <strong>yield point<\/strong>. Steel and brass ferrules behave elastically under low load. Push a little, and they spring back. Push past the yield point, and the deformation becomes permanent. The crimp stroke is sized to take the ferrule wall well past yield into plastic deformation, so the finished shape does not relax back when the dies retract.<\/p>\n<p>The second concept is <strong>residual tension<\/strong>. After the dies retract, the ferrule tries to spring back elastically, but it cannot fully recover because it has been plastically deformed. The result is a state of internal tension in the ferrule that clamps down on the hose reinforcement and the fitting stem. That clamp load is what resists pull-off under pressure pulses.<\/p>\n<p>The third concept is <strong>static friction<\/strong>. The clamping force generates friction between every contact surface: ferrule-to-wire, wire-to-wire, stem-to-inner-tube, stem-to-wire. Static friction is what holds the assembly together under axial load. The friction force equals the normal force times the coefficient of friction. Increase the clamp load, and the friction resistance rises with it. This is why a correct crimp does not rely on a &#8220;press fit&#8221; alone. It relies on the friction budget produced by the residual tension.<\/p>\n<p>The combination of these three effects is what crimp literature calls a <strong>cold weld<\/strong>. No heat is applied. No filler alloy is used. The two metal surfaces are forced into intimate contact under such high pressure that they behave, mechanically, as a single piece. The bond is gas-tight, meaning oxygen and moisture cannot reach the interface to cause corrosion. The joint is mechanically continuous. It does not have the brittle intermetallic layer that a soldered or brazed joint produces.<\/p>\n<h2>Crimping Compared With Soldering, Brazing, and Welding<\/h2>\n<p>The cold-weld mechanism explains why crimping has displaced heat-based joining methods in many high-pressure fluid applications. Each joining method has a different physics, and a different weakness.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Joining method<\/th>\n<th>Bond mechanism<\/th>\n<th>Strength<\/th>\n<th>Weakness<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hose crimping<\/td>\n<td>Plastic deformation past yield; residual tension; static friction; cold weld at ferrule-to-wire interface.<\/td>\n<td>Equal to or above the hose reinforcement strength. Joint is gas-tight and vibration-resistant.<\/td>\n<td>Requires matched die, ferrule, and target diameter. Wrong combination fails.<\/td>\n<\/tr>\n<tr>\n<td>Soldering<\/td>\n<td>Filler alloy (melting point below 450 \u00b0C) wets the base metal surfaces and solidifies on cooling.<\/td>\n<td>Limited by the soft filler alloy; typical tensile strength well below base metal.<\/td>\n<td>Heat-sensitive base metals; brittle intermetallics; joint relaxes under thermal cycling.<\/td>\n<\/tr>\n<tr>\n<td>Brazing<\/td>\n<td>Filler alloy (melting point above 450 \u00b0C) flows by capillary action; base metals do not melt.<\/td>\n<td>Higher than solder, but still filler-dominated; not as strong as cold-worked base metal.<\/td>\n<td>Heat-affected zone weakens adjacent material; requires flux cleanup; alloy layer is the weak link.<\/td>\n<\/tr>\n<tr>\n<td>Welding<\/td>\n<td>Base metals melt and fuse at the joint; sometimes with a compatible filler.<\/td>\n<td>High when done correctly; can match base metal strength.<\/td>\n<td>Heat distortion; embrittlement; not applicable to rubber hose or to steel-ferrule-to-rubber-tube interfaces.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The critical point is that soldering and brazing depend on a filler alloy layer at the joint interface. That layer is always the weak link. Crimping produces no filler layer. The bond is between the original base metals, deformed into intimate contact under high pressure. This is why Wikipedia lists the benefits of crimping over soldering as: a gas-tight connection that prevents corrosion, a mechanically stronger joint because no alloy is used, applicability to both small and large cross-sections, and no dangerous high-heat or toxic-flux processes.<\/p>\n<h2>Why a Crimped Joint Outperforms a Pressed Joint<\/h2>\n<p>A shop press, sometimes loosely called a &#8220;hose press,&#8221; applies force in one direction. A punch moves toward a lower die, and the workpiece is squeezed along a single axis. That produces uniaxial compression. The ferrule bulges perpendicular to the load, the hose reinforcement is loaded asymmetrically, and the finished profile tends to be oval rather than round.<\/p>\n<p>A radial hose crimper applies force from every direction simultaneously. The dies form a closed ring around the ferrule. Each die segment pushes inward, and the segments react against each other through the ferrule wall. The result is concentric, repeatable deformation that produces a round, predictable finished diameter. The reinforcement is loaded in pure compression, not in bending. That is the engineering reason why radial crimping produces a stronger, more repeatable joint than uniaxial pressing.<\/p>\n<p>This also explains why the tooling is segmented. A single-piece die cannot close around an installed fitting with a hex nut or elbow, because the fitting blocks entry from one side. Segmented dies open like a camera shutter, accept the assembly, and then close radially. The geometry is dictated by the physics of radial closure and by the practical need to load and unload hose assemblies.<\/p>\n<h2>The Ferrule Deformation Sequence, Step by Step<\/h2>\n<p>When the dies close on the ferrule, the deformation proceeds through four distinct phases. Each phase has a name in the crimp literature, and each one is a checkpoint the crimp data sheet is built around.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Phase<\/th>\n<th>What the ferrule does<\/th>\n<th>What the operator sees<\/th>\n<th>What goes wrong if it fails<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1. Elastic compression<\/td>\n<td>Ferrule wall elastically compresses; small OD reduction; no permanent set yet.<\/td>\n<td>Dies just contact the ferrule; small visible movement.<\/td>\n<td>If the dies stop here and retract, the ferrule springs back. No lock formed. This is the &#8220;under-crimp&#8221; failure mode.<\/td>\n<\/tr>\n<tr>\n<td>2. Yield onset<\/td>\n<td>Ferrule wall crosses the yield point. Permanent plastic deformation begins. Ferrule starts to grip hose cover.<\/td>\n<td>Visible crimp band forming; dies are 30-50% of stroke in.<\/td>\n<td>Mixed-system ferrule (wrong yield strength) reaches yield at the wrong stroke. Target diameter is missed.<\/td>\n<\/tr>\n<tr>\n<td>3. Cold-flow and void closure<\/td>\n<td>Ferrule material cold-flows into gaps. Hose cover compresses. Wire reinforcement is gripped. Stem serrations bite into inner tube.<\/td>\n<td>Dies at full stroke or set position. Hold pressure for 1-2 seconds dwell.<\/td>\n<td>Insufficient compression leaves voids inside the crimp. Voids become leak paths and stress concentrators under impulse.<\/td>\n<\/tr>\n<tr>\n<td>4. Spring-back and lock<\/td>\n<td>Dies retract. Ferrule tries to spring back elastically but cannot, because of plastic set. Residual tension locks the assembly.<\/td>\n<td>Dies fully open. Finished ferrule OD is at the target crimp diameter.<\/td>\n<td>Over-crimp (too much stroke) damages wire reinforcement. Under-crimp (too little stroke) leaves insufficient residual tension.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The four-phase sequence is why crimping is called a *process* and not just a squeeze. The target crimp diameter published by the hose and fitting manufacturer is the finished OD that corresponds to the correct completion of phase 3 and the correct residual tension after phase 4. Measuring the crimp diameter is, in effect, an indirect measurement of whether the cold-weld sequence was completed correctly.<\/p>\n<h2>What Makes a Crimp &#8220;Acceptable&#8221;<\/h2>\n<p>Industry practice defines a passing crimp by measurement, not by appearance. The reference is ISO\/TS 17165-2:2018, which sets the practices for hydraulic hose assemblies, and SAE J517, which defines the hose specifications. The acceptance criteria focus on four checks.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Check<\/th>\n<th>What you measure<\/th>\n<th>Acceptance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Crimp diameter<\/td>\n<td>OD of the ferrule at its flat band, measured in at least three positions around the circumference.<\/td>\n<td>Within the hose and fitting manufacturer&#8217;s published target window. Typical industry tolerance is around \u00b10.05 mm (\u00b10.002 inch); some manufacturers specify \u00b10.005 inch (\u00b10.125 mm).<\/td>\n<\/tr>\n<tr>\n<td>Ovality (out-of-round)<\/td>\n<td>Difference between the largest and smallest diameter around the ferrule.<\/td>\n<td>Within the manufacturer&#8217;s limit, usually well under 0.1 mm.<\/td>\n<\/tr>\n<tr>\n<td>Visual defects<\/td>\n<td>Cracks in the ferrule, exposed wire at the stem end, skiving errors, cover damage at the die witness marks.<\/td>\n<td>No cracks; clean cut-off at the ferrule back edge; no exposed reinforcement.<\/td>\n<\/tr>\n<tr>\n<td>Functional validation (when required)<\/td>\n<td>Proof pressure at 2\u00d7 working pressure; burst at 4\u00d7 WP; impulse per SAE J343.<\/td>\n<td>No leak, no blow-off, no failure before the required threshold.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The catch is that a visual inspection alone catches only part of the defects. Crimp-diameter measurement is the primary acceptance check, because it catches under-crimp, over-crimp, wrong die, and worn tooling in a single reading. For high-pressure service, proof and impulse testing catches the remaining defects.<\/p>\n<h2>Why Hose Construction Decides the Crimp<\/h2>\n<p>You cannot talk about crimping without talking about the hose. The reinforcement type inside the hose decides the tonnage class, the die profile, whether skiving is required, and the target diameter window.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Hose type (SAE \/ EN)<\/th>\n<th>Reinforcement<\/th>\n<th>Typical working pressure at 1 in. ID<\/th>\n<th>Crimping notes<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>SAE 100R1 \/ EN 853 1SN<\/td>\n<td>One wire braid<\/td>\n<td>~3,000 psi (210 bar)<\/td>\n<td>Lower tonnage; usually no-skive.<\/td>\n<\/tr>\n<tr>\n<td>SAE 100R2 \/ EN 853 2SN<\/td>\n<td>Two wire braids<\/td>\n<td>~3,000\u20134,000 psi<\/td>\n<td>Workshop-standard tonnage; covered by 137-ton class.<\/td>\n<\/tr>\n<tr>\n<td>SAE 100R12 \/ EN 856 4SP<\/td>\n<td>Four spiral wires<\/td>\n<td>~4,000\u20134,500 psi<\/td>\n<td>Higher tonnage; skiving often required for interlock fittings.<\/td>\n<\/tr>\n<tr>\n<td>EN 856 4SH<\/td>\n<td>Four spiral wires, heavy<\/td>\n<td>~4,000\u20135,000 psi at 1 in.<\/td>\n<td>Heavy-wall ferrule; high-tonnage machine.<\/td>\n<\/tr>\n<tr>\n<td>SAE 100R13 \/ R15<\/td>\n<td>Four to six spiral wires<\/td>\n<td>up to 5,000\u20136,000 psi<\/td>\n<td>Mining and heavy industry; 200 ton and up.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>This is why a buyer reading &#8220;up to 1 inch&#8221; in a crimper spec must ask a second question: one-inch braided hose, or one-inch 4SH? The two are different crimping problems. A compact 60-ton machine will handle a 1-inch 2SN hose easily and fail on a 1-inch 4SH assembly.<\/p>\n<h2>Hose Crimping vs Swaging vs Pressing<\/h2>\n<p>These three terms are often used loosely, and in some markets interchangeably. Technically they are not the same operation. <a href=\"https:\/\/en.wikipedia.org\/wiki\/Swaging\" target=\"_blank\" rel=\"noopener\">Swaging<\/a> is a forging method in which dimensions are altered by dies that separate and close, often using centrifugal or roller action. Crimping uses direct radial compression with segmented dies. Both methods join by plastic deformation, but the die kinematics differ.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Process<\/th>\n<th>How force is applied<\/th>\n<th>Tooling<\/th>\n<th>Typical application<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Hose crimping<\/td>\n<td>Radial, all-direction. Segmented dies close around the ferrule from every side at once.<\/td>\n<td>Multi-jaw segmented dies, factory-calibrated.<\/td>\n<td>Permanent hydraulic hose assemblies.<\/td>\n<\/tr>\n<tr>\n<td>Swaging<\/td>\n<td>Axial or tangential. A single tapered die is pushed or rotated over the ferrule. Dies separate and close.<\/td>\n<td>Tapered ring or rotary swager.<\/td>\n<td>Cable and wire rope terminations; some low-pressure fluid fittings.<\/td>\n<\/tr>\n<tr>\n<td>Shop press (sometimes called &#8220;hose pressing&#8221;)<\/td>\n<td>Uniaxial. A shop press pushes a punch toward a lower die. Force is mostly one-directional.<\/td>\n<td>Flat or V-block tooling, often improvised.<\/td>\n<td>Not recommended for production hose assemblies.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>The reason hose crimping uses radial segmented dies is simple: it produces a concentric, repeatable crimp diameter. A shop press or a swaging operation tends to produce an oval or inconsistent deformation unless the tooling was specifically engineered for the hose and fitting system. We cover the shop-press comparison in detail in our <a href=\"https:\/\/www.trcrimp.com\/blog\/hydraulic-hose-press\/\">hydraulic hose press article<\/a>.<\/p>\n<h2>Which TRC Crimper Fits Each Hose Class<\/h2>\n<p>TRC builds hose crimpers across the full tonnage range, from compact field units to 830-ton industrial machines. The right model depends on your hose mix, your workload, and your site. TRC manufactures all crimpers in a 5,000 m\u00b2 factory, certified to CE, SGS, UL and ISO, serving more than 300 customers across 50+ countries with a four-hour response window for technical support.<\/p>\n<div class=\"table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Hose class<\/th>\n<th>Volume profile<\/th>\n<th>Recommended TRC models<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Up to 1\/2&#8243; 2SN, field or low volume<\/td>\n<td><20 assemblies\/day<\/td>\n<td>[TRC P10HP](https:\/\/www.trcrimp.com\/products\/compact-hand-pump-hydraulic-hose-crimper-p10hp\/) (compact, 6 ton, zinc-nickel alloy anti-corrosion, 720-hour salt-spray tested); [TRC P16HP](https:\/\/www.trcrimp.com\/products\/95-ton-hand-operated-hose-crimping-machine-p16hp\/) (95 ton, lightweight and simple, popular in Europe).<\/td>\n<\/tr>\n<tr>\n<td>Up to 1&#8243; 2SN and 3\/4&#8243; 4SH, workshop<\/td>\n<td>50\u2013300 assemblies\/day<\/td>\n<td>[TRC P20](https:\/\/www.trcrimp.com\/products\/137-ton-workshop-hydraulic-hose-crimper-p20\/) (137 ton, 3 kW motor, classic workshop model, simple construction, rare failure); [TRC P20S](https:\/\/www.trcrimp.com\/products\/137-ton-compact-hydraulic-hose-crimper-p20s\/) (more compact, faster 3.6 s cycle); [TRC P20D](https:\/\/www.trcrimp.com\/products\/137-ton-cnc-hydraulic-crimping-machine-p20d\/) (CNC with multiple crimp modes, popular in Europe).<\/td>\n<\/tr>\n<tr>\n<td>Up to 2&#8243; R13, workshop production<\/td>\n<td>100\u2013500 assemblies\/day<\/td>\n<td>[TRC P32](https:\/\/www.trcrimp.com\/products\/200-ton-standard-workshop-hydraulic-hose-crimper-p32\/) (200 ton, 3.7 kW, classic); [TRC P32A](https:\/\/www.trcrimp.com\/products\/200-ton-open-frame-hydraulic-hose-crimper-p120c\/) (drawer-type die cabinet, caliper rack, value pick, strong in Malaysia \/ South America \/ South Africa); [TRC P32D](https:\/\/www.trcrimp.com\/products\/200-ton-cnc-step-crimping-hydraulic-hose-crimper-p32d\/) (CNC, popular in Europe).<\/td>\n<\/tr>\n<tr>\n<td>2&#8243; to 4&#8243; R13, mining and heavy industry<\/td>\n<td>High-force, lower volume<\/td>\n<td>[TRC P140](https:\/\/www.trcrimp.com\/products\/320-ton-separate-power-unit-industrial-hose-crimper-p140\/) (320 ton, separate power unit, crimps both hydraulic and industrial pipe, strong in Europe \/ Turkey \/ Brazil \/ USA); [TRC P160](https:\/\/www.trcrimp.com\/products\/350-ton-large-bore-industrial-hose-crimper-p160\/) (350 ton); [TRC P175](https:\/\/www.trcrimp.com\/products\/830-ton-large-bore-industrial-hose-crimper-p175\/) (830 ton, flagship, crimps every hydraulic size plus 15-inch industrial pipe, strong in Dubai \/ Canada).<\/td>\n<\/tr>\n<tr>\n<td>12 V field repair, service truck<\/td>\n<td>Portable<\/td>\n<td>[TRC P20CS](https:\/\/www.trcrimp.com\/products\/80-ton-12v-hydraulic-hose-crimper-p20cs\/) (80 ton, 12 V vehicle-powered, strong in Europe \/ North America \/ South America).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>If you are not sure which class fits your work, the shortest path is our <a href=\"https:\/\/www.trcrimp.com\/product-category\/hydraulic-hose-crimper\/\">hydraulic hose crimper category<\/a> or the <a href=\"https:\/\/www.trcrimp.com\/resources\/how-to-choose-a-hydraulic-hose-crimper\/\">how to choose a hydraulic hose crimper resource<\/a>.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.trcrimp.com\/wp-content\/uploads\/2026\/07\/blog40-p175_press.webp\" alt=\"TRC P175 830 ton industrial hydraulic hose press for mining\" loading=\"lazy\" width=\"800\" height=\"450\"><\/p>\n<h2>From Here<\/h2>\n<p>Once you understand what hose crimping is, the next questions are usually about the workflow and the equipment. Our <a href=\"https:\/\/www.trcrimp.com\/blog\/how-to-use-a-hydraulic-hose-crimper\/\">how to use a hydraulic hose crimper walkthrough<\/a> breaks the operation into eight controlled steps with the checks that belong at each one. For the wider production line \u2014 cutting, cleaning, skiving, crimping, measuring, testing \u2014 the <a href=\"https:\/\/www.trcrimp.com\/blog\/hose-crimping-equipment\/\">hose crimping equipment article<\/a> covers the full bench.<\/p>\n<p>The process does not change because the machine changes. A compact hand-pump unit and an 830-ton industrial machine both run the same physical sequence. The difference is how much force each can produce, how many assemblies per hour the line can put out, and which hose sizes each can cover.<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>Is hose crimping the same as swaging?<\/strong><\/p>\n<p>No. Hose crimping uses segmented radial dies that close around the ferrule from every direction at once, producing a concentric finished diameter. Swaging pushes or rotates a tapered die over the fitting, producing mostly axial or tangential deformation. Crimping is the standard method for permanent hydraulic hose assemblies; swaging is common for cable terminations and some low-pressure fittings. (<a href=\"https:\/\/en.wikipedia.org\/wiki\/Swaging\" target=\"_blank\" rel=\"noopener\">Source: real user question on crimp vs swage, mapped from the local Reddit and YouTube question library.<\/a>)<\/p>\n<p><strong>How much pressure can a crimped hose take?<\/strong><\/p>\n<p>The pressure rating belongs to the hose, not the crimp. A correctly crimped assembly matches the hose&#8217;s published working pressure, with a burst ratio around 4:1 (the hose is tested to survive roughly four times its rated working pressure before failure). A badly crimped assembly can fail well below the hose rating, which is why the crimp process \u2014 not the hose \u2014 is usually the limiting factor in service life.<\/p>\n<p><strong>Can I tell a good crimp just by looking at it?<\/strong><\/p>\n<p>No. A visual check is necessary but not sufficient. It catches cracks, exposed wire, and obvious cover damage, but it misses under-crimp, over-crimp, and wrong-die errors that only show up when the crimp diameter is measured. That is why crimp-diameter measurement with a calibrated caliper is the primary acceptance check in every controlled hose assembly process.<\/p>\n<p><strong>Why is crimping stronger than soldering or brazing?<\/strong><\/p>\n<p>Because the bond is formed by plastic deformation of the base metals, not by a filler alloy layer. A soldered or brazed joint depends on a soft filler that melts and solidifies; that filler layer is always the weak link. A crimped joint has no filler. The ferrule and the wire reinforcement are forced into intimate contact under pressure high enough to cold-flow the metals together, producing a gas-tight bond that resists corrosion, vibration, and thermal cycling better than a filler-alloy joint.<\/p>\n<p><strong>Buyer question: do I need a CNC crimper, or is a manual machine enough?<\/strong><\/p>\n<p>It depends on your workload. For low volume with a stable hose mix, a manual or powered hydraulic machine produces equivalent crimp quality, provided the first piece is measured. For mixed production with frequent changeover, or for applications that require batch records, a CNC machine like the TRC P20D or P32D pays for itself in reduced setup time, automatic records, and repeatability across operators.<\/p>\n<h2>References and technical boundaries<\/h2>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Crimp_(joining\" target=\"_blank\" rel=\"noopener\">Wikipedia \u2014 Crimp (joining)<\/a>). Reference for the general definition of crimping as a deformation-based joining process, including the cold-weld mechanism and the gas-tight principle.<\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Pascal%27s_law\" target=\"_blank\" rel=\"noopener\">Wikipedia \u2014 Pascal&#8217;s Law<\/a>. Reference for the hydraulic force-multiplication principle, including the 1653 origin and the distance-vs-force trade-off.<\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Hydraulic_press\" target=\"_blank\" rel=\"noopener\">Wikipedia \u2014 Hydraulic press<\/a>. Reference for the Bramah press principle (patent 1795) and its application to industrial force multiplication.<\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/en.wikipedia.org\/wiki\/Swaging\" target=\"_blank\" rel=\"noopener\">Wikipedia \u2014 Swaging<\/a>. Reference for the distinction between crimping and swaging die kinematics.<\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/www.iso.org\/standard\/74155.html\" target=\"_blank\" rel=\"noopener\">ISO\/TS 17165-2:2018 \u2014 Hydraulic hose assemblies, practices<\/a>. Supports the controlled-system principle and the requirement for first-piece verification.<\/li>\n<\/ul>\n<ul>\n<li><a href=\"https:\/\/saemobilus.sae.org\/standards\/j517_202007-hydraulic-hose\" target=\"_blank\" rel=\"noopener\">SAE J517 \u2014 Hydraulic Hose<\/a>. Reference for SAE 100R hose specifications.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Schlauchcrimpen verbindet einen Schlauch und eine Armatur dauerhaft, indem eine H\u00fclse um die Baugruppe mit passenden Matrizen und kontrollierten Abmessungen verformt wird.<\/p>","protected":false},"author":1,"featured_media":2735,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kadence_starter_templates_imported_post":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","rank_math_title":"What Is Hose Crimping? Components, Working Principle and Crimper Types","rank_math_description":"What is hose crimping? It is a controlled radial deformation process that joins a fitting to a hose using a ferrule and a matched die set. We explain the components, the force principle, and TRC crimper types.","rank_math_focus_keyword":"what is hose crimping","rank_math_robots":"","_rank_math_focus_keyword":"what is hose crimping","_rank_math_title":"","_rank_math_description":"","footnotes":"","rank_math_canonical_url":""},"categories":[46],"tags":[],"class_list":["post-1458","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-commercial"],"taxonomy_info":{"category":[{"value":46,"label":"Commercial"}]},"featured_image_src_large":["https:\/\/www.trcrimp.com\/wp-content\/uploads\/2026\/07\/cover-v2-what-is-hose-crimping-1024x538.webp",1024,538,true],"author_info":{"display_name":"turingcloud","author_link":"https:\/\/www.trcrimp.com\/de\/author\/turingcloud\/"},"comment_info":0,"category_info":[{"term_id":46,"name":"Commercial","slug":"commercial","term_group":0,"term_taxonomy_id":46,"taxonomy":"category","description":"","parent":0,"count":27,"filter":"raw","cat_ID":46,"category_count":27,"category_description":"","cat_name":"Commercial","category_nicename":"commercial","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/posts\/1458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/comments?post=1458"}],"version-history":[{"count":0,"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/posts\/1458\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/media\/2735"}],"wp:attachment":[{"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/media?parent=1458"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/categories?post=1458"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.trcrimp.com\/de\/wp-json\/wp\/v2\/tags?post=1458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}