ZQ127/25 Drill Pipe Power Tong for 2-3/8 to 5-1/2 inch drill pipe, tubing and casing. 25 kN.m max torque. Two-speed hydraulic operation. CAMTOP oilfield equipment.
ZQ127/25 Drill Pipe Power Tong | 2-3/8 to 5-1/2 inch | 25 kN.m Torque
Description
ZQ127/25 Drill Pipe Power Tong
2-3/8″ to 5-1/2″ | 25 kN.m Max Torque | Two-Speed | Hydraulic Operation
Product Overview
The ZQ127/25 Drill Pipe Power Tong is a mouth-opening type hydraulic power tong designed for makeup and breakout of 2-3/8″ to 3-1/2″ drill pipe, 2-3/8″ to 4-1/2″ tubing, and 4-1/2″ to 5-1/2″ casing in oilfield workover and well servicing operations. Featuring a two-speed planetary gear system, safety door linkage protection, and interchangeable die seats and dies, the ZQ127/25 delivers reliable, high-torque performance with outstanding operational safety.
Operating Range: 2-3/8″ to 5-1/2″ | Max Torque: 25 kN.m (Low Gear) | Max Speed: 43 rpm (High Gear) | Weight: 680 kg
Assembly Drawing
ZQ127/25 Drill Pipe Power Tong General Assembly Drawing
Key Features
- Mouth-Opening Design: Open-throat configuration allows quick positioning around the pipe string without stripping over the tool joint
- Two-Speed Planetary Gear System: High gear (43 rpm) for speed, low gear (8 rpm) for maximum torque of 25 kN.m
- Safety Door Linkage Protection: Flexible shaft controlled reversing valve stops the tong immediately when the safety door opens, preventing accidental operation
- Interchangeable Die System: 8 die seat sizes and 3 die ranges cover the full operating range with quick-change capability
- Combination Tong Configuration: Master tong + backup tong with front and back guide pole assemblies for stable pipe engagement
- Hydraulic Lift Bucket: Integrated hydraulic lifting cylinder with throttle and stop valve for precise height positioning
- Dual Handle Operation: Fore handles (RH/LH) and back handles for safe two-handed operation and positioning
- Centralizing Roller System: 21 centralizing rollers with shafts ensure proper alignment around the pipe
- Multiple Die Seat Options: Die seats available from 2-3/8″ to 6-1/8″ marked sizes for different pipe and coupling requirements
- Durable Construction: Heavy-duty steel construction with ductile iron components and hardened gear surfaces
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ZQ127/25 |
| Application Range | 2-3/8″ to 3-1/2″ Drill Pipe / 2-3/8″ to 4-1/2″ Tubing / 4-1/2″ to 5-1/2″ Casing |
| Rated Oil Supply Pressure | 16 MPa (2,320 PSI) |
| Rated Oil Supply Flow | 120 L/min (31.7 GPM) |
| Max Torque (Low Gear) | 25 kN.m (18,440 ft-lbs) |
| Max Torque (High Gear) | 5.1 kN.m (3,760 ft-lbs) |
| Max Speed (High Gear) | 43 RPM |
| Max Speed (Low Gear) | 8 RPM |
| Hydraulic Motor | J6K-625 |
| Overall Dimensions | 1,270 x 770 x 780 mm |
| Net Weight | 680 kg (1,499 lbs) |
| Hydraulic Oil Type | YC-N46 / YB-N46 / YA-N46 (per ambient temperature) |
| Max Oil Temperature | 65 C (149 F) |
Die Seat & Die Selection Guide
| Die Seat | Mark | Application | Die Size Range |
|---|---|---|---|
| Die Seat (1) | 3-1/2″ | 2-3/8″ DP, 3-1/2″ TBG | 73-78 |
| Die Seat (2) | 4″ | 2-7/8″ DP, 4″ TBG | 89-114 |
| Die Seat (3) | 4-1/2″ | 4-1/2″ TBG, 3-1/2″ TBG coupling, 4-1/2″ CSG | 121-156 |
| Die Seat (4) | 5″ | 3-1/2″ DP, 4″ TBG coupling, 5″ CSG, 4-1/2″ CSG coupling | 89-156 |
| Die Seat (5) | 5-1/2″ | 4-1/2″ TBG coupling, 5-1/2″ CSG, 5″ CSG coupling | 121-156 |
| Die Seat (6) | 6-1/8″ | 5-1/2″ CSG coupling | Select |
| Die Seat (7) | 2-7/8″ | 2-7/8″ TBG | Select |
| Die Seat (8) | 2-3/8″ | 2-3/8″ TBG | Select |
Main Components
| Assembly | Description |
|---|---|
| Master Tong | Main power tong with hydraulic motor J6K-625, planetary gear system, shift mechanism, and hand control valve |
| Backup Tong | Counter-rotation tong for holding pipe while master tong makes up or breaks out |
| Tong Head Assembly | Jaw set bracket, ramp, main body, open gear, retainer pin with interchangeable dies and die seats |
| Brake Mechanism | Friction disc, brake steel plate, knob shaft with brake bolts and springs for controlled rotation |
| Guide Pole Assemblies | Front (x2) and back guide pole assemblies with back guy connection rated to 50 kN |
| Hydraulic Bucket | YDT800 hydraulic lift cylinder with throttle and stop valves for height adjustment |
| Power Input Shaft | Input shaft with deep groove ball bearings, clutch gear, inner spline gear, and shifting gear |
Operation Highlights
- Lifting: Close throttle valve, open stop valve to lift the tong. Open throttle valve and stop valve to lower
- Height Lock: Close stop valve at desired height. Open throttle valve for normal make-up/break-out operation
- Breakout: Move the pin axle to the lowest hole on the guide pole for breakout operations
- Safety Door: Must be closed for operation. Opening the door immediately stops all tong movement via flexible shaft reversing valve
- Leveling: Adjust adjusting screws on lifting bar to keep tong level for proper clamping
- Back Guy: Must be tied to rig structure, vertical to the drill pipe during make-up. Rated load: 50 kN
Troubleshooting Guide
| Problem | Cause | Solution |
|---|---|---|
| Dies Slip | Die groove filled with debris or over-worn dies | Clean die grooves or replace dies |
| Uneven Clamping | Tong body not level; master and backup tong heads misaligned | Adjust leveling screws and realign tong heads |
| Retaining Pin Fails | Pin not seated in reset knob axle | Turn reset knob and reset retaining pin |
| Master Clamps / Backup Slips | Backup tong jaw plate turning direction opposite to master | Swap hydraulic hose connections |
Why Choose CAMTOP?
- High-quality drill pipe power tongs manufactured to demanding oilfield specifications
- Complete range of die seats and dies available for all pipe sizes in the operating range
- Full spare parts support including hydraulic motors, gear assemblies, seal kits, and bearings
- ISO 9001 certified quality management system
- Competitive factory-direct pricing with global shipping
- Technical guidance and maintenance support provided
Contact CAMTOP
Email: sales@cposl.com
Phone: 86-18621723891
Website: www.camtop-oilfieldtools.com
Address: No. 432, Fute North Road, Pudong District, Shanghai, China
Reviews
There are no reviews yet.