Rock Reamers 4-48 Inch Pilot Hole Opening Tools for HDD Drilling with 135-3900 lb Weight Range
Price:
Negotiate
MOQ:
1 pcs
Delivery Time:
Negotiable
Brand:
ROSCHEN
Product Description
Rock Reamers: Versatile Hole Opening Solutions
The Rock Reamer represents the most versatile and cost-effective hole opening solution for Horizontal Directional Drilling (HDD) applications. Engineered to eliminate redrills caused by cutter failure, this innovative tool minimizes on-site inventory requirements while significantly reducing operational costs.
Key Advantages
- Superior strength compared to conventional hole openers
- Extended on-bottom rotating time reduces cutter costs and trip time
- Field-serviceable design allows cutter and arm replacement without welding equipment
- Single body configuration accommodates six different opening sizes
- Bidirectional operation for both push and pull reaming applications
Rock Reamer Specifications
Body Specifications
| Body | Min. Pilot Hole | Connection | Weight | Length |
|---|---|---|---|---|
| R4 | 4 1/2" | 2 7/8" IF B X B | 135 lbs. | 42" |
| R6 | 6" | 3 1/2" IF B X B | 346 lbs. | 52" |
| R6-20 | 20" | 4 1/2" IF B X B | 1565 lbs. | 62" |
| R8 | 8 1/2" | 4 1/2" IF B X B | 730 lbs. | 65" |
| R17 | 17 1/2" | 7 5/8" REG B X B | 1915 lbs. | 65" |
| R26 | 26" | 7 5/8" REG B X B | 2669 lbs. | 65" |
| R36 | 36" | 7 5/8" REG B X B | 2569 lbs. | 65" |
| R42 | 42" | 7 5/8" REG B X B | 3290 lbs. | 65" |
| R48 | 48" | 7 5/8" REG B X B | 3900 lbs. | 65" |
Cutter Specifications
| Body | No. of Cutters | Pilot Hole | Connection | Opening Range |
|---|---|---|---|---|
| R4 | 3 | 4 1/2" | 2 7/8" IF B X B | 8 1/2" - 12" |
| R6 | 3 | 6" | 3 1/2" IF B X B | 12" - 20" |
| R6-20 | 5 | 20" | 4 1/2" IF B X B | 24" - 32" |
| R8 | 3 | 8 1/2" | 4 1/2" IF B X B | 16" - 26" |
| R17 | 3,4 | 17 1/2" | 7 5/8" REG B X B | 24" - 34" |
| R26 | 3,5 | 26" | 7 5/8" REG B X B | 32" - 42" |
| R36 | 3,5 | 36" | 7 5/8" REG B X B | 42" - 52" |
| R42 | 4,5,7 | 42" | 7 5/8" REG B X B | 48" - 58" |
| R48 | 4,5,7 | 48" | 7 5/8" REG B X B | 54" - 64" |
Formation Removal Calculation
Use the formation removal chart to calculate approximate cubic feet of material removed per foot drilled. To determine total cubic yards of material removed, multiply cubic feet by total footage and divide by 27.
Cutter Replacement Procedure
Cutter Installation Steps
- Position the correctly sized cutter into the designated pocket
- Slide the arm into position to secure the cutter
- Tighten the three bolts according to torque specifications
- Secure the lock screws using specified torque values
- Repeat procedure for each cutter assembly
Torque Specifications
| Sizes | Allen Wrench | Torque | Lock Screw / Torque |
|---|---|---|---|
| R8 thru R-48 | 1" | 2000-2500 ft/lb | 5/8" / 400-500 ft/lb |
| R4 | 5/8" | 400-500 ft/lb | 5/16" / 40-60 ft/lb |
| R6 | 7/8" | 1000-1200 ft/lb | 3/8" / 100-150 ft/lb |
Contact Information
ROSCHEN GROUP LIMITED
Skype: ROSCHEN.TOOL, ROSCHEN_GROUP
WeChat: +86-137 6419 5009; +86-135 8585 5390
WhatsApp: +86-137 6419 5009; +86-135 8585 5390
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Get in Touch
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Company
ROSCHEN GROUP
Location
65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Contact Person
Bill, George, Michael