HPR38L-20 Bridge Pier Mini Piling Rig 20m Depth 480-1000mm Bore 38kNm Torque for Abutment Strengthening Work
HPR38L-20 Bridge Pier Piling Rig
,20m Depth Abutment Drilling Rig
,Under Deck Pile Machine
HPR38L-20 Mini Piling Rig for Bridge Pier and Abutment Strengthening
Bridge widening and seismic strengthening demand piles drilled beside live piers, often under the deck. The HPR38L-20 reaches 20 m depth with 480-1000 mm diameters while standing only 2.9 m high without kelly bar and 6 m in working position, so it can drill beneath an existing bridge soffit without closing the carriageway.
Low Headroom Advantages
- 6 m working height allows drilling under bridge soffits and girders
- 20 m depth and 480-1000 mm diameter for pier and abutment pile groups
- 2.9 m transport height without kelly bar and 4.9 m transport length
- 38 kNm torque with 40 kN pressure force penetrates dense gravel and weathered rock
- 11000 kg chassis with 2.3 m width for working between pier lines
Technical Specifications
| Drilling Depth (Max) | 20 m |
| Drilling Diameter (Range) | 480~1000 mm |
| Kelly Bar (Size) | 425 x 8 x 2.8 m |
| Lateral Tilt Angle | 10/7° |
| Forward Tilt | 13° |
| Backward Tilt | 10° |
| Rotary Head Output Torque | 38 kNm |
| Rotation Speed | 7~40 rpm |
| Max Stroke | 1000 mm |
| Pressure Force | 40 kN |
| Lifting Force | 40 kN |
| Lifting Capacity | 40 kN |
| Main Winch Lifting Speed | 30 m/min |
| Main Winch Rope Diameter | 16 mm |
| Auxiliary Winch Lifting Force | 10 kN |
| Auxiliary Winch Lifting Speed | 30 m/min |
| Auxiliary Rope Diameter | 11 mm |
| Engine | Isuzu 4JG3X |
| Operating Weight | 11000 kg |
| Working Height | 6 m |
| Transport Height with Kelly Bar | 3.5 m |
| Transport Height without Kelly Bar | 2.9 m |
| Transport Length | 4.9 m |
| Transport Width | 2.3 m |
| Excavator Chassis | SANY SY75C |
* Actual depth performance may differ due to soil condition, machine performance and operator skills.
Typical Applications
- Bridge pier and abutment strengthening piles
- Under-deck pile drilling without road closure
- Culvert and box structure foundation reinforcement
- Retaining wall and wing wall pile work
- Bridge widening foundation construction
Standard Supply Scope
- Main machine with SANY SY75C crawler chassis
- Kelly bar 425 x 8 x 2.8 m
- Main winch 16 mm rope and auxiliary winch 11 mm rope
- Isuzu 4JG3X engine with electronic display
- Standard drilling tools and pile alignment kit
Why Contractors Choose This Rig
Bridge work is scheduled around traffic. A low headroom rig that drills 20 m piles under the deck keeps lanes open and avoids the cost of a full closure. The 38 kNm head and 40 kN pressure force handle the gravel layers typical of river crossings.
Verticality monitoring and casing guide frames can be included for pier pile tolerance requirements.
Contact
APIE FOUNDATION EQUIPMENT (CHINA) LIMITED
Add: NO.108-4-1911 Huishan Avenue, Huishan Zone, Wuxi City, Jiangsu Province, China
Tel: +86-18921287030 | Fax: +86-510-83790757
E-mail: apie@apiepiling.com |
