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Bend Tooling
location United States

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Our Products

Leading Manufacturer, Supplier & Retailer of Solid-Body Mandrel Assemblies, Bend Tooling, Bend Tooling Accessories, Mandrel Tooling and Complete Set of Tools.

Solid-Body Mandrel Assemblies

  • tube diameters .875" to 5.563" (22mm to 140mm).
  • bending capacity. 1-"D"
We can supply you with both our standard-setting inserted mandrel assembly and the traditional "aircraft-quality" solid-body alternative. Almost any job a solid-body can do, the inserted one can also with all the advantages noted above. However, if you have a tube-bend application that must be done under high direct pressure, you may find a solid-body mandrel will work better
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Rotary Draw Tube Bending Die Sets

  • right-hand mounting 3-inch/75mm machines)
  • bend dies larger (250mm in diameter)
Bend Tooling supplies the entire package for rotary-draw tube-bending. Manufactured with Datafacturing , the most advanced machining technology in the industry, our new generation of Shockmate die sets are unsurpassed in fit and finish. Plus, these tools are tough!
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Mandrels

Since the introduction of the modern ball mandrel in the 1950's, aluminum-bronze and hard-chrome plated steel have been the most common material specifications. The former has been preferred for ferrous and titanium tubing while the latter for aluminum, copper-based, and, in some cases, mild steel tubing. Even with the advent of remarkable life-extending thermal diffusion and titanium coatings, there remain good reasons for preferring aluminum-bronze and hard-chromed plated steel for mandrel tooling.For example, the primary cause of shortened mandrel life is not the material specification but set-up. The purpose of the mandrel is to maintain the original round, square, rectangular, or other shape of the tubing throughout the arc of the bend. This is achieved by setting the mandrel so that its nose supports the point of bend, at which the tubing material becomes plastic as it is drawn into a bend. Too often the mandrel nose is set behind the point of bend so that the weaker balls and links must do the work of the nose, which significantly shortens the life of these components.
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Die Sets

A rotary-draw die set has three components: Bend die, clamp die, and pressure die. The key material requirement for these dies is that they are tough. A tough die has hard working surfaces that can absorb a shock without breaking. So a tough die has some give. It is not brittle. For the same reason we do not use glass hammers, we should avoid materials and heat treatments for bending dies that make them brittle instead of tough and so break instead of wear out. Consequently, the tool steels that are sometimes specified for rotary-draw die sets, such as A2, D2, or even a shock-resistant material like S7, are not the best materials in terms of cost-effectiveness. While they can be heat treated to a high level of hardness, they are designed to hold a sharp edge in metal-cutting operations. So the brittleness that comes with this hardness is acceptable for that use. However, tube-bending is, of course, not a metal-cutting process. There is no need for tooling materials that hold a sharp edge.
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Bend Tooling

Welcome to the industry's only comprehensive resource for the terminology used in rotary-draw tube-bending. The primary objective of the Bend Tooling Encyclopedia is to define the various words and phrases in use in the tube-bending community in order to ensure that even if we are not speaking the exact same language, we do understand each other. The Bend Tooling Encyclopedia builds upon the glossary John Gillanders authored in his widely-circulated guide to tube-bending, Pipe and Tube Bending Manual -- and then some. More than a dictionary, it contains extensive articles on key subjects which not only provide definitions but also the concepts, applications, practices, and relationships to other subjects behind the term in question. This internet version of the Bend Tooling Encyclopedia is divided into seven volumes, which are extensively hyperlinked to relate common subjects within the Encyclopedia and elsewhere in the website.
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Bend Tooling Accessories

  • Color Black
Bend Tooling also makes available separately all of the minor components your tool set from us needs including:Insert (or mandrel) link screws.Assembly kits for links (detent ball, detent spring, and retaining ring).Assembly tools for our poppet-style links.Wiper insert mounting screws.Clamp insert assembly screws.T-keys and T-key screws for clamp dies.Mounting plates and related screws for Pines clamp dies.Hanger bracket and related screws for pressure dies.Keys, pilots, and related screws for mounting and stacking bend dies.
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High Pressure Wiper Dies

  • Material round tubing
  • tube diameters 875
Bend Tooling's industry-leading inserted wiper die is our most popular product. Over the past twenty years we have perfected the design and manufacture of our inserted wiper line, and no one else comes close to our quality, price, and speed of delivery. We also manufacture traditional "aircraft-quality" square-back solid-body wiper dies plus we have a resharpening service for these tools (including those made by our competitors). Square-back solid-body wiper dies are excellent for high-pressure tube-bending jobs that require the wiper to be set at zero-rake. However, they are relatively costly to purchase and then recondition as they wear. Consequently, Bend Tooling has introduced a new wiper product, our patented High-Pressure Wiper System (U.S. Patent No. 20080202189-A1). This new tool combines the best features of a traditional solid wiper and a modern inserted wiper for cost-efficient high-performance for high-pressure rotary-draw tube-bending. If you are bending stainless steel, titanium, Inconel, or tight-radius tube bends, ask us about this effective alternative to solid square-back wipers.
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Mandrel Tooling

bullet If you need a replacement component for a mandrel you have purchased from us, please give us the part number of either the component or the mandrel assembly.bullet For a new mandrel assembly, please tell us the size and shape of the tube, bend orientation (if applicable), wall thickness, bend radius, and tubing material. We will then quote to you the mandrel we recommend, its price, and its delivery.bullet Otherwise, you can specify the mandrel assembly you want by giving us the nose diameter, number of balls, mandrel material, mounting thread, body length, and style (inserted or solid). With this information we will quote to you the price and delivery for a mandrel according to your specifications.
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Complete Set Of Tools

A print of the tube bend, if available. We can also work from an XYZ dataset of the bend coordinates.bullet Tube shape. For example, round, square, rectangular, elliptical, or oval, bullet Orientation of non-round tube bend, either hard-way (major axis in plane of bend) or easy-way (major axis perpendicular to the plane of bend).bullet Outside diameter or outside dimensions of tube. If your request is for pipe, please tell us if you are specifying the true outside diameter or using the nominal IPS or EMT diameter. Similarly, if your request is for copper tube, please tell us if you are specifying the true outside diameter or using the nominal K-type or L-type diameter.bullet Wall thickness. If you are bending laminated tubing, we can specify the mandrel more accurately if you provide us with the thickness of each lamination.bullet Bend radius. Please tell us if you are specifying the centerline radius (typical for round tubes) or the inside radius (typical of non-round tubes).bullet Degree of bend. Unless a special consideration is involved, we recommend that you specify this as either a 90-degree bend or a 180-degree bend to maximize the utility of your rotary-draw tool set for other applications.bullet Tubing material. For example, mild steel, stainless steel, titanium. If your request is for either aluminum or copper tubing, please give us the exact material specification or in the alternative whether the material is hard or soft. These two materials vary widely in hardness, and will change the tools we recommend if in the soft condition.bullet Make and model of your rotary-draw bending machine. We have the mounting specifications for most machines on file. If we don't have the information for your machine, we will send to you blank tool drawings so that you can fill in the basic dimensions for the mountings.bullet If you have not sent us a drawing and your request is for a multiple-bend tubular component, please inform us any mid-tangent restrictions on clamp length. Similarly, advise us if the request is for "bent-leg" U, a serpentine bend, or other multi-bend configuration that will cause clearance problems with your machine.bullet Finally, please tell us if serrations (which improve the grip of short clamps, but the trade-off is marking of the outside surface of the tube) are acceptable or unacceptable.
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Wiper Tooling

If you need a replacement component for an inserted wiper assembly or reconditioning of a solid wiper die you have purchased from us, please give us the part number of the component, the wiper assembly, or the solid wiper (as appropriate).bullet For a new wiper, please tell us the diameter of the tube, the centerline radius of the bend, and the tubing material. Depending upon the tube diameter, we will normally specify a mounting pattern of either two 38"-16 holes on 1.5" centers or two 12"-13 holes on 1.5" centers. If your machine requires a different pattern or metric mountings, be sure to tell us. In most cases a non-standard pattern will not involve any additional charge. With this information we will quote to you the wiper we recommend, its price, and its delivery.
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