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PCH 20-28.5"0 pages
Upsize Tooling - Powered Cutter Head
Part No. FA43100F (Model PCH 20), Part No. FA42850F (Model PCH 22.5),
FA43000F (Model PCH 28.5)
• Designed To Work in 96” Minimum ID or Trenchbox Shafts •
• Independent Drives For Rotation & Spoil Removal •
• Controlled By GBM Operator In Launch Shaft •
FEATURES
• The PCH 20 is an upsizing tool to match 20” product pipe (15” VCP). Increaser kits available to 22.5” OD.
• The PCH 22.5 is an upsizing tool to match 22.5” product pipe (18” VCP). Increaser kits available to 28” OD.
• The PCH 28.5 is an upsizing tool to match 28.5” product pipe (24” VCP). Increaser kits available to 36” OD.
• Separate lubrication lines on cutter head reduce jacking forces on pipe and lubricate cutter face for ease of spoils removal.
• Operates with standard jacking frame and P100Q/P150Q power unit with minimal modifications to jacking frame hydraulics.
• Spoils are discharged to reception shaft.
• Product pipe length does not change tooling.
• Product pipe length dependent only on shaft size.
• Uses standard GBM 11” OD thrust casings.
SPECIFICATIONS
Assembly Length ................... 72 in. (1,829 mm)
Two sections may be launched separately
Diameter
Powered Cutter Head Body
PCH 20 .......................... 20 in. (508 mm)
PCH 22.5 .................... 22.5 in. (572 mm)
PCH 28.5 .................... 28.5 in. (724 mm)
Overcut ................................ 1.5 in. (38 mm)
Weight (approximate)
Front Section
PCH 20 ................... 1,800 lbs. (816.5 kg)
PCH 22.5 ................... 2,000 lbs. (907 kg)
PCH 28.5 ................ 3,000 lbs. (1,361 kg)
Rear Section
PCH 20 ......................... 900 lbs. (408 kg)
PCH 22.5 ................... 1,000 lbs. (454 kg)
PCH 28.5 ................... 1,700 lbs. (771 kg)
Drive System
Auger Drive
Max. Torque ....10,500 ft-lbs (14,238 N•m)
Max. Speed ................................. 50 rpm
Cutterface Power
PCH 20 ............................32 HP (24 kW)
PCH 22.5 ........................ 48 HP (36 kW)
PCH 28.5 ..................... 61 HP (45.5 kW)
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GBM_PCH, FA42850F
