Langfang Baiwei Drill Co., Ltd.
Langfang Budweiser drilling tool manufacturing Co., Ltd
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The expansion method for in-place replacement utilizes specialized expander to generate controlled radial expansion forces within existing pipes. This uniformly enlarges or splits the old pipe diameter while simultaneously pulling new pipe into the expanded cavity. This single-pass process completes pipe rehabilitation by “expanding and replacing” without excavation or additional working pits.
Gentle Force Application: Utilizes radial expansion force rather than axial tension, subjecting manhole walls to minimal reaction forces and causing zero structural damage to chambers.
No Pipe Accumulation: Completely eliminates “pile-up” phenomena, ensuring smooth construction without pipe jamming risks.
Flexible Replacement: Supports both same-diameter replacement and one-size-up pipe diameter expansion (Up-size) to enhance flow capacity.
| Project | Unit | KX50 | KX80 |
|---|---|---|---|
| Load | KN | 50 | 800 |
| Full thrust | KN | ||
| Maximum pull-back speed | m/min | 1.5 | 1.5 |
| Minimum pull-back speed | m/min | 0.8 | 0.8 |
| Advance rate | m/min | ||
| Power | KW | 4 | 7.5 |
| Size of the host (length width and height) | mm*mm*mm | 480*400*400 | 600*400*400 |
| Hydraulic station size (length width and height) | mm*mm*mm | 800*550*500 | 1200*1000*900 |
| The host weight | kg | 120 | 280 |
| Hydraulic station weight | kg | 140 | 400 |
| Fit diameter of manhole | mm | 420 | 420 |
| Require well dimensions (length) | mm | 800 | 1000 |
| Rod specifications | mm*mm | Φ60*500 | Φ68*600 |
Our standard production time is approximately 20 days. For items in stock, we can ship within 3 business days.
We conduct rigorous quality inspections and performance tests on every drill rod prior to shipment to guarantee reliability and durability.
Yes, we welcome sample orders as an opportunity for you to evaluate our product quality before committing to larger quantities.
Yes, all our drill pipes and casings undergo professional heat treatment to enhance their structural strength and operational performance.
Yes, each drill pipe and casing receives anti-rust paint or anti-corrosion oil coating before shipping. Galvanized options are available upon request.
Contact: Mrs. Tina Zhao
Whatsapp/Wechat: +86 13507065529