32-42″ Pipe Bending Machine (HPB32-42)



  • The HPB32-42 has a 75 gal (284 Litre) fuel tank and a 200 gal (757 L) hydraulic tank with 160 gal (606 L) fill capacity. The Large hydraulic tank helps keep the oil cooler,extending the life of the hydraulic system.
  • Hydro Control five-section hydraulic control valve provides bending and winch operation. Hydraulic mandrel operation is a standard feature on all Darby bending machines.
  • Machine side plates are reinforced with stiffeners for optimal frame life. Side plates are 11⁄4″ (31.8 mm) T1 steel and die nest plates are 11⁄2″ (38.1 mm) T1 steel. All welds are preheated, heat controlled and made “in position”.
  • Frame cross tubes supporting the hydraulic cylinders have 3⁄8″ (9.5 mm) wall thickness
  • Parker Seal Lok™ hydraulic system prevents leaks and has a working pressure rating of 3,000 psi (206.8 bar).
  • Murphy control panel includes electric start, throttle control, oil pressure, tachometer and hour meter.
  • Hydraulic cylinders can be disassembled without cutting for ease of repair.
  • Pinup is fully reinforced to prevent spreading.
  • 390 Quincy Air compressor is hydraulically driven by its own circuit.
  • 10-micron hydraulic pressure and return line filtration keeps oil clean to extend the life of the system.
  • Oil cooler in compressor drive circuit keeps the circuit cooled. It continously circulates, even when the compressor is not running. This extends the life of the hydraulic system.
  • Heavy duty 3-roller tracks for improved performance and lower ground track.


  • Maximum bending force at front of stiffback is 1,140,400 lbs (517,276 kg).
  • Air compressor with 240 psi (16.5 bar) continuous pressure for mandrel performance.
  • With engine running at 2,200 rpm, hydraulic vane pump produces 145 gpm (549 LPM) @ operating pressure.

Technical Specifications:

Length 26’8″ (8,128 mm)
Width 10’2″ (3,098.8 mm)
Height 11’5″ (3,479.8 mm)
Weight 82,500 lbs (37,421 kg) (w/o bending set)
Engine CAT C6.6 Turbo Diesel 202 hp @ 2,200 rpm
Winch Ramsey 20,000 lb (9,071 kg) Powermaster® hydraulic planetary winch
Air Compressor Quincy 390 LVD air compressor w/hydraulic drive and 120 gal (454.3 L) resevoir
Cylinders (4) 11″ (279 mm) outboard cylinders w/18.5″ (469.9 mm) stroke
(4) 8″ (203 mm) inboard cylinders w/6″ (152.4 mm) stroke
(1) 7″ (177.8 mm) pin-up cylinder w/42″ (1,066.8 mm) stroke
Hydraulic Pump Three Parker Piston Pumps
Oil Cooler American Industrial