Hydraulic Pipe Bending Machine - NorthernTool
Hydraulic Pipe Bending MachineOWNER’S MANUALWARNING: Read carefully and understand allINSTRUCTIONS before operating. Failure to follow thesafety rules and other basic safety precautions may resultin serious personal injury.Item# 141805, 426261, 426260
Thank you very much for choosing a NORTHERN TOOL EQUIPMENT CO., INC. Product! Forfuture reference, please complete the owner’s record below:Model:Purchase Date:Save the receipt, warranty and these instructions. It is important that you read the entire manualto become familiar with this product before you begin using it.This machine is designed for certain applications only. Northern Tool Equipment cannot beresponsible for issues arising from modification. We strongly recommend this machine is notmodified and/or used for any application other than that for which it was designed. If you haveany questions relative to a particular application, DO NOT use the machine until you have firstcontacted Northern Tool Equipment to determine if it can or should be performed on theproduct.For technical questions please call 1-800-222-5381.Intended Use:The Hydraulic Pipe Bender is designed for bending thick-walled pipes (black iron, schedule 40 &80,etc.). There are six different bending dies ranging from 1/2" to 2" for Item# 141805, eight differentbending dies ranging from 1/2" to 3" for Item# 426261 and nine different bending dies ranging from1/2" to 4" for Item# 426260. The Hydraulic Pipe Bender is not designed for bending thin-walledpipesTECHNICAL SPECIFICATIONSModel (Item#)ItemBending DiesMax. workingpressureMax. off-loadpressureMax. working loadMax. working strokeCapacity O.DThicknessOil tank capacityBending angleOil gradeMax. operating forcePipeSize1/2"3/4 "1"1-1/4 "1-1/2 "2"2-1/2"3"4"SF-2 00048500PSI6686-725880008500Lbs.InchMM180009 27/32Ø21.5 604200016 1/2Ø21.5 88.54400016 1/2Ø21.5 108MMQuartsDegree#Lbs.2.75 4.51 1/490 180 N15 1102.75 4.51 7/890 180 N15 1102.75 4.53 1/890 180 N15 110SF-2 0YESYESYESYESYESYESYESYESN/APage 2 of SNOYESNOYESNO
GENERAL SAFETY RULESWARNING: Read and understand all instructions. Failure to follow all instructions listedbelow may result in electric shock, fire and/or serious injury.WARNING: The warnings, cautions, and instructions discussed in this instructionmanual cannot cover all possible conditions or situations that could occur. It must beunderstood by the operator that common sense and caution are factors which cannot be built intothis product, but must be supplied by the operator.AssemblyNo special set up is required and little space is needed to operate the bending machine.1- Assembly of the lower plate: First turn over the cylinder and remove the four hex bolts on thebase of the cylinder. Align the four holes of the lower plate with the holes of the cylinder base,and affix with the hex bolts taken from the cylinder base.2- Assembly of the upper plate: When the lower plate is assembled, turn the cylinder over andinsert two swaging blocks in the hole of the lower plate. Place the upper plate over the swagingblocks and use the die cover shaft (Part# 55) to secure the swaging block and the back oilcylinder seat (Part# 58).OPERATIONBefore using, check the hydraulic oil in the cylinder by loosing the vented oil bolt (Figure 1) andvisually ensure that the piston inside is covered in oil when the pipe bender is in the horizontalposition.Figure 1: Vented oil boltSTEPS1. Tighten release valve (Part# 26) by turning clockwise.2. Loosen vented oil bolt (Part# 46).3. Grease die cover (Part# 56), swaging blocks (Part# 68) and the tube to be bent.4. Lift the upper plate (Part# 64) and affix bending die to the end of the cylinder ram as shown inPage 3 of 9
Figure 2. Place two swaging blocks into the holes of lower plate (Part# 54) and place tube infront of them. Turn the swaging blocks so their grooves face toward the tube die (Figure 3).5. To account for the pipe shortening during the bending process, make sure the pipe extendsbeyond the swaging blocks, as shown in Figure 3.Figure 2: Die installed on cylinder ram.Figure 3: Pipe is installed beyond swaging blocks to account for pipe shortening during the bend.NOTE: For short pipes, set the swaging blocks closer together, as shown in Figure 4, to ensure thatthe pipe extends beyond the swaging blocks to account for pipe shortening during the bend.Page 4 of 9
Figure 4: Swaging blocks set close together for bending short pipes.6. Return upper plate to original position and use the advance pump (See Figure 5) to quicklyadvance the die. Note: Only one handle is included with the bending machine. The picturebelow shows a piece of pipe being used as a handle in the advance pump.Figure 5: Operating pumps and release valve7. Use the forming pump to apply heavy pressure to bend the pipe to its desired angle.8. When finished bending, release the pressure by opening the release valve. The ram willautomatically retreat. Lift the upper plate to take out the bent tube.IMPORTANT: Before use, check the oil in oil tank to make sure there is enough oil to operate pipe bender. Loosen vented oil bolt to ventilate. Before bending any pipe, the release valve must be closed. The outside diameter of pipe must fit the groove of tube die, or else the pipe will be shaken orthe tube die will burst. The contact surface between tube and the two swaging blocks must be smooth. Coat swagingblocks with lubricating oil. Make sure a weld seam is not at the bending point. If air is in the pump, firstly loose the vented oil bolt. Raise the cylinder head to make the pipebending machine tilt at 45 position. Then, pressing down the handle until there is no air in thecylinder. When the air emitted, loosen the release valve counterclockwise to make the cylinderram go back and then place the pipe bending machine horizontally. Strictly observe the technical parameters while using the pipe bender. Excessive pressure isunadvisable since it will damage the machine. Periodically clean and maintain the machine. Use clean, filtered oil, making sure the filter (Part#30) is cleaned regularly. Lock the vented oil bolt when finished using the machine.Maintenance It is basically maintenance free. However, the oil level should be kept constant at about 1 ¼Qts.(141805), 1 7/8Qts.(426261), 3 1/8Qts.(426260) of quality hydraulic oil. Too much oil will force the surplus oil to leak from the cylinder seals and possible damage them.Not enough oil will cause loss of power as air will be sucked in, causing a drop in pressure.Page 5 of 9
Figure 6: Vented oil bolt removed from cylinderTroubleshooting1. The cylinder ram is extended feebly. Check the steel ball in release valve (Part# 26) to see if it has fallen. Then tighten releasevalve clockwise. Check the hydraulic oil to make sure the cylinder (Part# 45) is filled. Check the vented oil bolt (Part# 46) to see if it is loose. Change the polyurethane seal ring (Part# 36) in plunger pump. Remove the air in cylinder.2. There is air in the plunger pump or there is no oil in the plunger pump. Remove the air in cylinder. There isn’t enough oil in the oil tank; add oil Oil grade isn’t according to standards, change with quality hydraulic oil. There is dirt in the filter, and it must be cleaned. Dismantle filter with wrench and clean coppermesh.Page 6 of 9
Diagram and Parts ListPage 7 of 9
PARTS 62728293031323334353637383940DESCRIPTIONPUMP HANDLE GRIPPUMP HANDLEFORMING PUMP SUPPORTADVANCE PUMP SUPPORTSOLID PIN 6*35ROLL PIN 1.5*16CONNECTING RODLARGE PLUNGER RODYX SHAPE SEAL RING D28LARGE PLUNGER CASEOIL SEAL GASKET 48*39*3SMALL PLUNGER RODYV SHAPE SEAR RING D16SMALL PLUNGER CASEOIL SEAL GASEKT 31*24*3FOOTSTEPHEX BOLT M8-1.25*20FLAT WASHER 8 MMPIN SHAFT A6*28ROLL PIN 1.5*16HEX NUT M12-1.75UNIVERSAL WHEELSTEEL PEARL 6.5MMPLUG SCREW M8-1.25*10FLAT HD SCR M4-0.7*12RELEASE VALVENEEDLE VALVE CORECHAMPING RINGROLL PIN 4*10OIL FILTERPHLP HD SCR M4-0.7*10COMPRESSION SPRINGFRONT OIL CYLINDER SEATO-RING 95*3.1O-RING 58*4YX SHAPE SEAL RING D50FRONT SPRING SEATCAP SCREW M8-1.25*30TENSION SPRINGBACK SPRING IPTIONPISTON-RODCOPPER WASHEROIL SEAL GASKET 19*14*2CAP SCREW M14-2*45OIL CYLINDERVENTED OIL BOLTOIL SEAL GASKET 21*14*2OIL TANKRUBBER SEAL PD60*80*10O-RING 95*3.1O-RING 16PIN SHAFTROLL PIN 3*30LOWER PLATEDIE COVER SHAFTDIE COVERO-RING 20BACK OIL CYLINDER SEATOIL CYLINDER SPLICING CAPGUIDE SLEEVECAP SCREW M5-0.8*30HEX BOLT M14-2*25SPLIT PIN 14UPPER PLATESWAGING BLOCK BRACKETPIN SHAFT A10*45ROLL PIN 2.5*20SWAGING BLOCKHEX NUT M6-1FLAT HD SCR M6-1*161/2" BENDING DIE3/4" BENDING DIE1" BENDING DIE1-1/4" BENDING DIE1-1/2" BENDING DIE2" BENDING DIE2-1/2" BENDING DIE3" BENDING DIE4" BENDING DIEFor replacement parts and technical questions, please call 1-800-222-5381Page 8 of 9
MANUFACTURER’S LIMITED WARRANTYThe limited warranty set forth below is given by Northern Tool Equipment Company Inc., (NTE) with respect tonew merchandise purchased and used in the United States, its possessions and territories.NTE warrants this product against defects in material and workmanship for a period of 12 months parts/ 12months labor, commencing on the date of original purchase and will, at its option, repair or replace, free of charge,any part found to be defective in material or workmanship. This limited warranty shall only apply if this product hasbeen operated and maintained in accordance with the Owner’s Manual furnished with the product, and has notbeen subject to misuse, abuse, commercial use, neglect, accident, improper maintenance, alteration, vandalism,theft, fire, water or damage because of other peril or natural disaster. Damage resulting from the installation or useof any accessory or attachment not approved by NTE for use with the products(s) covered by this manual will voidyour warranty as to any resulting damage. This warranty is limited to ninety (90) days from the date of originalretail purchase for any NTE product that is used for rental or commercial purposes, or any other income-producingpurposes.This limited warranty does not provide coverage in the following cases:1.User does not comply with the instructions and exceeds the claimed capacity.NTE reserves the right to change or improve the design of any NTE product without assuming any obligation tomodify any product previously manufactured.No implied warranty, including any implied warranty of merchantability or fitness for a particular purpose,applies after the applicable period of express written warranty above as to the parts as identified. No otherexpress warranty or guaranty, whether written or oral, except as mentioned above, given by any person orentity, including a dealer or retailer, with respect to any product shall bind NTE during the period of theWarranty, the exclusive remedy is repair or replacement of the product as set forth above. (Some states donot allow limitations on how long an implied warranty lasts, so the above limitation may not apply to you.)The provisions as set forth in this warranty provide the sole and exclusive remedy arising from the sales.NTE shall not be liable for incidental or consequential loss or damages including, without limitation,expenses incurred for substitute or related expenses, or for rental expenses to temporarily replace awarranted product. (Some states do not allow limitations on how long an implied warranty lasts, so the abovelimitation may not apply to you.)In no event shall recovery of any kind be greater than the amount of the purchase price of the product sold.Alteration of the safety features of the product shall void this warranty. You assume the risk and liability for loss,damage, or injury to you and your property and/or to others and their property arising out of the use or misuse orinability to use the product.This limited warranty shall not extend to anyone other than the original purchaser, original lessee or the person forwhom it was purchased as a gift.How State Law Relates to this Warranty: This warranty gives you specific legal rights, and you may also haveother rights which vary from state to state.For questions about your warranty, please call 1-800-222-5381.Northern Tool Equipment Co.,2800 Southcross Drive WestP.O. Box 1499 Burnsville, MN 55337-0499Made in ChinaPage 9 of 9
The Hydraulic Pipe Bender is designed for bending thick-walled pipes (black iron, schedule 40 &80, etc.). There are six different bending dies ranging from 1/2" to 2" for Item# 141805, eight different bending dies ranging from 1/2" to 3" for Item# 426261 and nine different bending dies ranging from 1/2" to 4" for Item# 426260.
pipe bending springs no. 2450 pipe bending pliers no. 241-242 manual pipe bender - draw bending operation manual bending tool sets no. 243 manual bending tool sets no. 244 manual bending tool sets no. 278 manual bending tool sets no. 240 universal manual pipe bender no. 276 manual pipe bender - pushing bending operation no. 2454-2456 pipe .
Pipe Bending Systems Useful information How do I find the right bending tool Pipe bending pliers no. 242 Manual pipe bender - Draw bending operation Manual bending tool sets no. 243 Manual bending tool sets no. 244 Manual bending tool sets no. 278 Universal manual pipe bender no. 276 Manual pipe bender - Pushing bending operation no. 2456
Pipe Bending Revision 2.0 September 2014 1.0 Bending Processes for Pipe Fitting 1.1 Pipe and Tube Bending Pipe bending machines are typically human powered, pneumatic powered, hydraulic assisted, or electric servo motor. In the pipe bending operation the tube may be supported internally or externally to preserve the cross section of the pipe.
done manually. Using a particular machine specially developed for bending of pipes helps. II. LITRATURE REVIEW Design and fabrication of hydraulic bending machine[1], Pankaj Kumar Pandey et al, This investigation is all about working and designing of bending machine. This bending machine can bends a small plate, rods, pipes, tubes.
tubing [7]. Freeform-bending processes, like three-roll-push bending, shape the work piece kinematically, thus the bending contour is not dependent on the tool geometry. "Fig. ure . 3 " shows the . application. of Pipe. or . Pipe. Bending. "Fig. ure . 3. Applications of Pipe Bending Machine " 2. Problem Identification. 2.1 Heat-Treatment
this project is aimed to do bending operation for s tirrups using hydraulics and named as hydraulic rod bending machine. The main objective of our project is to implement t he hydraulic rod bending machine in the constructio n sites with less cost compared to the existing bending machines, and increasing the productivity of the stirrups.
There are several types of tube bending method adapted to manufacturers' purpose. In fact, press bending or rotary draw bending method is commonly used to form bend of pipe or tube. B. 3 Roll bending method Press bending is simplest and cheapest method of bending cold tube and pipe. This method is almost the first bending
An Introduction to Modal Logic 2009 Formosan Summer School on Logic, Language, and Computation 29 June-10 July, 2009 ; 9 9 B . : The Agenda Introduction Basic Modal Logic Normal Systems of Modal Logic Meta-theorems of Normal Systems Variants of Modal Logic Conclusion ; 9 9 B . ; Introduction Let me tell you the story ; 9 9 B . Introduction Historical overview .
