Parker Exactol 400 Series Tube Benders Manual
16Pages

Parker 400 Series Tube Benders Bulletin 4391-B400S

EXACTOL® 400 Series Tube Benders Table of Contents WARNING FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE. This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product and/or system options for further investigation by users having technical expertise. It is important that you analyze all aspects of your application and review the information concerning the product or system in the current product catalog....

EXACTOL® 400 Series Tube Benders Introduction, Capacity and Specifications EXACTOL® Tube Benders (For 1/4" – 1-1/2" diameter tubing) Sturdy…Simple…Manual… Bends to exact tolerances. The Parker Exactol Tube Benders are probably the most versatile bench benders available today. Built for easy manual bending of copper, brass, aluminum, steel and stainless steel tubes to exact tolerances, the 400 Series benders are also compact and portable to any area for service use where a vise is available. Along with the bender itself, Parker has developed a complete package of accessories to enable this...

EXACTOL® 400 Series Tube Benders Parts and Accessories Bender Parts and Accessories Typical Radius Blocks EXACTOL Bender Three Hole Bench Mounting Adapter Seal-Lok Close Bend Adapter Carrying Case 550572 (412 only) Slide Blocks Slide Block Close Bend EXACTOL Bender (with Handle and Tie Bar) Seal-Lok Close Bend Adapter Inch Sizes Metric Sizes Bench Mounting Adapter Seal-Lok Adapter Part No. *Previously Model #420. Part number 621044 has been upgraded in capacity to support bending of 1 1/2” tubing. Bender Construction Each bender consists of a cast aluminum frame and base, with a manual...

EXACTOL® 400 Series Tube Benders Radius Die Blocks Radius Die Blocks Radius die blocks can be furnished from stock in 34 sizes for standard bends ranging from 9/16" to 5" radii, as given in the chart below. There are six small radius die blocks, eleven large radius die blocks, three sizes of close bend radius blocks, and fourteen metric sizes of radius blocks (shown in chart below). Each radius die block has a graduated marking at intervals of 15° to indicate the degree of bend. Each radius die block also has an integral clamp arrangement for easy, quick, positive clamping of the tube,...

EXACTOL® 400 Series Tube Benders Medium to Heavy Wall Tube Bending Step 1: Mounting Tube Bender The tube bender should be mounted in a bench vise (or in an adapter assembly fastened to a bench). Be sure the bender is tightly clamped or securely bolted down. Step 2: Select Radius Block Select the proper radius block according to the chart on page 3. Radius blocks, size 1/4" through 3/4" are made to drive with two pins; radius blocks, 7/8" through 1-1/2", are made to drive with three pins. After selecting the proper size radius block, remove or add one drive pin in the drive plate to...

EXACTOL® 400 Series Tube Benders Medium to Heavy Wall Tube Bending Step 5: Select Slide Block Groove Select the proper groove of the slide block for the outside diameter of the tube (sizes are marked on the end of the slide block) and position the slide block accordingly, against the slide block vise face with the end of the block adjacent to the tube clamp of the radius block. Lubricate the slide block to facilitate sliding. Then, advance the slide block by means of the telescopic adjustment screw, to rest snugly against the tube, but not with so much pressure as to prevent the block from...

EXACTOL® 400 Series Tube Benders Thin Wall Tube Bending with Mandrel Equipment Instructions for Thin Wall Tube Bending with Mandrel Equipment When bending thin wall tube it may be necessary to insert a mandrel into the tube to prevent excessive distortion or flattening. To accomplish such bending, a Mandrel, Mandrel Rod, and a Mandrel Rod Stop Assembly are required. The Rod Stop Assembly holds the end of the Mandrel Rod in proper alignment with the tube while the Mandrel, which is threaded onto the other end of the Mandrel Rod, supports the tube on its I.D., thus preventing tube kinking or...

EXACTOL® 400 Series Tube Benders Thin Wall Tube Bending with Mandrel Equipment Step 1: Mount Bender in Adapter Assembly For mandrel bending, it is necessary to install the bender in a bench mounting adapter assembly. Locate the adapter assembly front mounting holes about 3” from the front edge of the bench, with T slot front to back and scale on the right. Secure the bender in the adapter assembly by tightening the flat head screws in the bottom of the adapter slide. Then place the bender in the mounting assembly with the axis of its drive handle shaft parallel with the T slot. This places...

EXACTOL® 400 Series Tube Benders Thin Wall Tube Bending with Mandrel Equipment Step 5: Adjust Adapter Slide Loosen the Allen head screw in slide adapter base and move the bender to adjust for the radius block in use. Position the slide indicator pointer to the radius of the radius block being used, in order to properly center the radius block with respect to the tube and mandrel rod. Then tighten the adapter slide screw with the Allen wrench. Step 6: Mark Tube Step 7: Clamp Tube Step 8: Select Slide Block Groove These four steps are the same as Steps 3, 4, 5 and 6 shown on pages 4-5. Step...

EXACTOL® 400 Series Tube Benders Model 412 Parts Schematic Model 412 Tube Bender/Maintenance and Parts List Bender Maintenance Model 412 Parts List (Part # 560569) All parts should be kept clean and free from dirt and grit. Slide block and radius blocks should be handled carefully to avoid damaging the smooth grooved surfaces. Presence of nicks, burrs, pieces of dirt or chips may mar the surface of the tube and thereby weaken it. All threaded parts should be cleaned and slightly greased occasionally to keep them in good working condition. This equipment will operate efficiently for a long...