Twin 540 bhp C15 power packs
Two CAT C15 engines at 540 bhp each, through two Allison M5620AR transmissions, split the load across two drivetrains so an 1800 kN hook rating is held without overloading a single power path.
Drilling Rigs
750HP Truck Mounted Rigs
The XJ750 truck-mounted workover rig is where the line goes to dual power: two CAT C15 engines, each rated 540 bhp, paired with two Allison M5620AR transmissions to supply the hoisting work behind an 1800 kN maximum load. Ten lines of 32 mm (1 1/4-inch) wire are reeved 5x6 under a 38 m mast, with a fast-rope pull of 280 kN, and the rig drills to 3000 m on 4 1/2-inch drill pipe. Splitting the drivetrain across two engine-transmission sets is what lets a self-propelled carrier carry this kind of hook load and still relocate as one vehicle, rather than shipping a second power unit separately. It is the step chosen for super-deep workover and heavy overhaul where a single-engine 650 hp unit would be running at its ceiling.
Core advantages
Designed around the operating requirement.
1800 kN hook, 280 kN fast line
Maximum load reaches 1800 kN with a 280 kN fast-rope pull, the working envelope for super-deep heavy tripping that single-engine rigs cannot sustain for long.
5x6 reeving, 32 mm line, ten lines
Ten lines of 32 mm wire in a 5x6 arrangement spread the 1800 kN across more parts and a thicker rope, which matters on repeated heavy pulls at depth.
38 m high-capacity mast
A 38 m clear-height mast gives stand-pipe clearance for deep wells and the stiffness that an 1800 kN hook rating requires, taller than the 35 m class below it.
3000 m drilling reach
On 4 1/2-inch drill pipe the unit reaches 3000 m drilling, bridging heavy workover and slim-hole drilling without changing carriers between jobs.
Self-contained cross-region relocation
With both power packs and the mast integrated on the carrier, the rig drives between locations under its own power after the mast folds and outriggers retract, avoiding a separate heavy haul.
| Product | 750HP Truck Mounted Rigs |
|---|---|
| Product line | Drilling Rigs |
| Drilling depth (4 1/2" DP) m | 3000 |
|---|---|
| Max fast rope pull kN | 280 |
| Max. Load kN | 1800 |
| Rope diameter mm (in)/effective qty n | Φ32 (1 1/4") /10 |
| Max hoisting speed m/s | 1.4 |
| Traveling system | 5×6 |
| Engine | CAT C15/540 bhp 2 set |
| Transmission model | ALLISION M5620AR 2 set |
| Clear height of mast m | 38m |
Application
Where this equipment is used.
- This truck-mounted workover rig carries dual-power workover and drilling: an 1800 kN hook on ten lines of 32 mm wire in a 5×6 arrangement, with drilling to 3000 m on 4-1/2 in pipe.
- Heavy casing replacement, stuck-pipe fishing and plug-milling where the 280 kN fast-line pull and 38 m mast set the envelope.
- Campaign work across dispersed blocks: the self-propelled carrier relocates the rig as one vehicle rather than shipping components.
- Completion and renovation programmes on 8000 m-class wells, with the twin CAT C15 packs protecting uptime if one engine needs service.
- High-angle well service where the 38 m mast and floor layout give headroom for long stands and a stacked BOP.
- Site conditions in desert, Gobi and high-altitude regions are addressed by the 750HP Truck Mounted Rigs climate and coating configuration.
Next step
Send the operating requirement.
For a useful technical response, include the target well conditions, operating depth or pressure, expected quantity, destination and any required configuration.
Send an InquiryConfiguration
Options for a matched equipment scope.
Available configurations can be matched to the equipment model, operating conditions and project requirements.
- Hook and hoist margin: confirm the 1800 kN rating, 5×6 line arrangement and 38 m mast static load against the heaviest string.
- Power architecture: the twin CAT C15 / Allison M5620AR layout is standard; duty-cycle-based options can be discussed.
- Drilling scope: confirm the 3000 m drilling rating and circulating equipment if the rig will drill before workover.
- Well-control fit: BOP stack height, choke manifold and floor layout matched to the mast clearance.
- Cold-climate fit for 750HP Truck Mounted Rigs: low-temperature start, heat preservation and coating confirmed against the operating site.
- Paperwork and training for 750HP Truck Mounted Rigs: manuals, factory test report and first-period spares ship with the unit; commissioning and familiarization on request.
Buyer questions
Frequently asked about this equipment.
The 750HP truck-mounted rig questions begin with twin-power layout, hook capacity and when a dual-engine unit is required.
What makes the 750HP XJ750 truck-mounted workover rig different from 650HP models?
The XJ750 is the first truck-mounted rig in the range to split the drivetrain: two CAT C15 engines at 540 bhp each, behind two Allison M5620AR transmissions, feed the hoist with a 280 kN fast-rope pull and an 1800 kN maximum hook load on ten lines of φ32 mm wire reeved 5×6 under a 38 m mast. Workover depth reaches 8000 m on 2-7/8″ tubing, and the rig separately drills to 3000 m on 4 1/2″ drill pipe. The twin-pack layout is the difference from the 650HP single-power class: if one engine needs service, the second pack keeps the job moving.
Does the 750HP super-heavy rig need professional trailer transportation?
No. Once the mast is folded and the hydraulic outriggers are retracted, the whole XJ750 drives between wells under its own twin engine packs; neither a separate trailer nor a crane is required to move it. That self-propelled relocation is the reason a rig at this hook rating stays truck-mounted instead of being built on skids.
What is the maximum operating depth of this rig?
The standard XJ750 works over to 8000 m on 2-7/8″ tubing and drills to 3000 m on 4 1/2″ drill pipe, both inside the 1800 kN hook on the 5×6, φ32 mm hoist. Hoisting and deck options can be re-specified at order time for programs close to the rating, and the verified envelope is recorded in the factory test report.
Can the equipment adapt to long-term full-load operation in extreme oilfields?
The dual-power layout is the operating margin in extended field campaigns: with two engines, the rig can hold a long heavy pull while one pack is serviced, and the reinforced mast and floor are rated for continuous full-load duty. Cold-start, dust sealing and heat-exchanger options are configured to the site climate at order time, so state the operating region when requesting the quotation.
What after-sales support ships with the 750HP Truck Mounted Rigs?
For the XJ750 we supply the full documentation set, the recommended first-period spare list and continuous remote guidance from the engineering team. Because the dual-engine and dual-transmission driveline is specific to this class, commissioning is led by senior engineers familiar with both power packs, and training covers the combined-control logic as well as standard rig operation.
Procurement information
Ordering this equipment.
Commercial terms are confirmed in the quotation for the exact configuration, quantity and destination.
Certification & standards
Fully compliant with API 4F and international petroleum machinery standards under ISO 9001:2015, the XJ750 truck-mounted rig delivers ultra-stable, high-efficiency and safe construction performance for super-large oilfields and extreme harsh working environments.
Documentation
Operation manuals, chassis documentation and factory test reports are supplied; the PTO and hydraulic system schematics are included for the client's service department. On-site commissioning is available.
Lead time
Confirmed in the quotation according to configuration, quantity and destination.
Warranty & after-sales
Manuals, conventional spare parts and remote technical guidance are included; on-site commissioning and operator training can be arranged on request.
Payment & delivery
Payment schedule, Incoterms, port and packaging are agreed in the sales contract.
Spare parts
A recommended spare-parts list for the first operating period is provided with the quotation.
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