holding liquid pressure curved tube machine, China Suppliers and Manufacturers

holding liquid pressure curved tube machine

Supplier Info

Lianyungang Yan Shun International Trade Co., Ltd.

[China Supplier]

Contact Person : Mr. zhang Richard

Tel : 0086-518-82802748

Fax : 0086-518-83062748

Product Detail

1.manual hydraulic pipe bending machine 2.aluminium pipe size 4" 6" approval 3.widely used in transportation,railway,bridge

≤

MPA	44
Working stroke(MM)	250
Bending angle	π/2≤α<π
radius of curvature	4D
Pipe's OD and thickness	21.3×2.75 26.7×2.75 33.5×3.25 42 ×3.25 48 ×3.5 60 ×3.5
Weight of the machine (KG)	60
Size of the machine (MM)	76×38×23

1,When you receive the bender,…(1)After unpacking, see if all the accessories listed on the packing list are included in the package.(2)See if there is any damage to the bender due to improper handling in transportation.(3)Read this instruction carefully before you operate it.

2,Where the SWG serles benders are applled to The SWG series hand-control lipuid formation benders are suitable for bending low-voltage liquid-conveying welded tubes, electric steel tubes and common purpose steel tubes. They are also used to bend other steel tubes with the same outer diameters. They are unsuitable for thin-wall tubes, steel tubes that are unfit in the bending mold, and non-ferrous tubes. Benders are widely used in construction engineering, petrochemical, water-supply and heating engineering, petroleum, coal, shipbuilding and other industries.

3,Specifications and parameter

Model			SWG-2A	SWG-3B	SWG-4D	SWG-5A
Item			SWG-2A	SWG-3B	SWG-4D	SWG-5A
Maximum Operating pressure		Mpa	44	59	62	63
Super-pressure Unload pressure		Mpa	44	/	/	/
Maximum Operating load		kn	88	196	206	300
Maximum Operating range		nn	250	320	420	550
Bending	outer diameter	mm	φ21.3-φ60	φ21.3-φ88.5	φ21.3-φ108	φ75.5-φ133
capacity	wall thickness	mm	2.75-5	2.75-6	3.75-7	3.75-8
Capacity of the Oil tank		L	1	1.5	2.5	3
Weight		Kg	58	120	193	278
Curving angle		rad	π/2≤α<π	π/2α<π	π/2 ≤ α<π	π/2 ≤ α<π
Oil grade			N15	N15	N15	N15
Maximum Operating force		N	<490	<490	<490	<490
Bending radius		mm	4D	4D	4D	4D

Outer diameterLow-voltageLiquid-conveyingWelded tube	mm	φ21.3φ26.8φ33.5φ42.3φ48φ60	φ21.3φ26.8φ33.5φ42.3φ48φ60φ75.5φ88.5	φ21.3φ26.8φ33.5φ42.3φ48φ60φ75.5φ88.5	φ75.5φ88.5
Steel tubes	mm			φ108	φ108φ133

,The structural drawing of SWG series hand-control bender

1,Prop up 2,Oil filter 3,Switch 4,Plunger punp5,Oil in put 6,Oil tank 7,Oil tank cushion8,Lower mold board 9,Upper mold board 10,Bending mold11,Supporting wheel 12,Handle

6,Notices(1)Outer diameter and corresponding thickness of the tube wall:

φ21.3	φ26.8	φ33.5	φ42.3	φ48	φ60	φ75.5	φ88.5	φ108	φ133
2.75	2.75	3.25	3.25	3.5	3.5	3.75	4	4.5	5

Tubes with the corresponding thickness of the tube wall less than the above data are called thin-wall tubes. Those tubes are prone to cause conceived wrinkles when they are bent. Therefore, as the thickness of the tube wall deereascs, the elliptic angle incrcases and wrinkles are easily caused;(2)Release the serew of the oil input to let air in and out;(3)Tighten the switch before you are to bend the tube, otherwise no pressure can be generated;(4)Put the tube tightly in the mold, otherwise concave wrinkles will be produced or the tube will probably break;(5)The area of the tube touching the two suppouting wheels should be very smooth and lubricant should be added. The welding spot of the welded tube should face right outside or inside;(6)In operating, in case that a phenomenon of air-intake is observed, the handle should be moved in order to invigorate the large phunger pump. Lift the head of the oil tank to let the bender incline in an 45° angel, then counterclockwise release the switch to let the air out of the oil tank. Do this process several times if necessary;(7)Put on the two supporting wheels in the right positions;(8)Operate the bender strictly according to the specifications: No over pressure or over load is allowed, otherwise the bender will be damaged;(9)Clean and maintain the machine regularly. Oil should be filtered through steel rod liter of 100 holes perinch. Filter should be cleaned regularly;(10)Do not use this machine in area with acidie, basic and corrosive materials;(11)Do not adjust the unload pressure valve; it was adjusted when manufactured;(12)Tighten the air-release valve after the machine stops working.

7,Operating instruction(1)Tighten the switch clockwise;(2)Release the screw of the oil input;(3)Put on lubricant on the bending mold, supporting wheel and the area to be bent of the tube;(4)Open the upper mold board, and select suitable mold according to the bending tube. Lay the mold in the front of the functioning rod, and then put the two supporting wheels in the two holes on the lower mold board. Then put on the tube to be bent, and move the two supporting wheels to let the corresponding notch facing the bending mold;(5)Turn over the upper mold board, and move the handle to invigorate the large plunger pump in order to let the bending mold to be on the tube to be bent, Then use the small plunger pump to press to an angle desired;(6)Release the switch in counter clockwise and the functioning rod will be back to the original position. Open the upper mold board and take out the tube.

8,Trouble-shooting(1)The functioning rod does not work, so the machine can not bend tubes.a. Check if the steel ball in the switch is lost, then tighten the switch clockwise.b. Check if the oil tank is full. It should be full of oil;c. Release the screw on the oil input;d. Change the XY-type polyurethane sealing washer the plunger pump;e. Let the air in the oil tank out.(2)Hollowing out in the plunger pump or oil can not come out.a. Let the air in the oil tank out;b. Oil level is too low; and oil in the tank;c. The oil does not conform the desired grade. Use N15 mechanic oil;d. Filter needs cleaning.(3)The handle gradually lifts up when it is moved.Let the functioning rod come out, or harmmer the handle when it is operationg and pressure is felt on the plunger pump.(4)Oil leakage from the large and small plunger pumps.Change the sealing washers contained in the accessory bag.

sales1 at yanshunchina dot com dot cn

holding liquid pressure curved tube machine