PCH 36-44"
PCH 36-44"
This document provides technical specifications and operational procedures for the GBM_PCH36-44, FA44100F-FA43400F powered cutter heads, designed for use in trenchless construction methods.
Specifications
- Assembly Length: 91 inches (2,311 mm)
- Diameter:
- PCH 36: 36 inches (914 mm) OD
- PCH 44: 44 inches (1,118 mm) OD
- Overcut: 1.5 inches (38 mm)
- Weight:
- Front Section PCH 36: 4,300 lbs. (1,955 kg)
- Front Section PCH 44: 6,500 lbs. (2,955 kg)
- Rear Section PCH 36: 3,000 lbs. (1,364 kg)
- Rear Section PCH 44: 4,500 lbs. (2,045 kg)
- Drive System:
- Auger Drive Max. Torque: 20,000 ft-lbs (27,120 N•m)
- Max. Speed: 38 rpm
- Cutterface Power:
- PCH 36: 79 HP (59 kW)
- PCH 44: 93 HP (69 kW)
Features
- Designed for 144” minimum ID or trenchbox shafts.
- Independent drives for rotation and spoil removal.
- Controlled by GBM operator in launch shaft.
- Equipped with hydraulic dirt wing to prevent rolling.
- Uses 16” OD heavy-duty thrust casings.
- Operates with the 4812A jacking frame and P275T power pack.
- Four jetting nozzles enhance cutting performance and spoil removal.
Upsize Tooling
- PCH 36 matches 36” OD product pipe (30” VCP), increaser kits available to 44” OD.
- PCH 44 matches 44” OD product pipe (36” VCP), increaser kits available to 48” OD.
Guided Boring Method with Powered Cutter Head
- Step 1: Precise installation of pilot tubes on line and grade.
- Step 2: Advancing thrust casings along the pilot tube path with a reaming head or upsizing tool.
- Step 3: Installation of product pipe with powered cutter head to increase bore to match product pipe diameter.
Catalog excerpts
GUIDED BORING METHOD WITH POWERED CUTTER HEAD Step 1: PRECISE INSTALLATION OF PILOT TUBES The first step is the installation of the pilot tube on line and grade. Step 2: ADVANCING THRUST CASINGS ALONG PILOT TUBE PATH The second step is to follow the pilot tube with a reaming head, or other upsizing tool and standard thrust casings. Step 3: INSTALLATION OF PRODUCT PIPE WITH POWERED CUTTER HEAD In the third step, the powered cutter head follows the thrust casings to increase the bore to match the product pipe diameter. 47 GBM_PCH36-44, FA44100F-FA43400F
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