Truck mounted drilling rig
Technical Specifications
Note: The table below presents representative technical parameters for SJ Petroleum’s standard truck mounted drilling rig series (ZJ10 through ZJ40 models). Custom configurations are available for specific depth, terrain, and operational requirements.
| Parameter | ZJ10 / 1125CZ | ZJ15 / 1350CZ | ZJ20 / 1470CZ | ZJ30 / 1700CZ | ZJ40 / 2250CZ |
|---|---|---|---|---|---|
| Nominal Drilling Depth (4½" DP) | 1,000 m (3,280 ft) | 1,500 m (4,920 ft) | 2,000 m (6,560 ft) | 3,000 m (9,840 ft) | 4,000 m (13,120 ft) |
| Workover Depth (3½" DP) | 3,500 m (11,480 ft) | 4,000 m (13,120 ft) | 5,500 m (18,050 ft) | 6,500 m (21,320 ft) | 7,500 m (24,600 ft) |
| Max. Hook Load | 1,125 kN (253,000 lb) | 1,350 kN (303,700 lb) | 1,470 kN (330,700 lb) | 1,700 kN (381,300 lb) | 2,250 kN (505,800 lb) |
| Drawworks Power | 450 hp | 550 hp | 650 hp | 750 hp | 1,000 hp |
| Mast Height (Working) | 34 m | 34 m | 35 m | 38 m | 39.3 m |
| Substructure Height | 3.7 m | 4.5 m | 4.5 m | 6 m | 6.7 m |
| Traveling System | 4×5 | 4×5 | 4×5 | 5×6 | 5×6 |
| Wireline Diameter | φ26 mm (1″) | φ26 mm (1″) | φ29 mm (1⅛″) | φ29 mm (1⅛″) | φ32 mm (1¼″) |
| Carrier Drive Type | 10×8 | 10×8 | 12×8 | 14×8 | 14×10 |
| Max. Travel Speed (Limited) | 45 km/h | 45 km/h | 45 km/h | 45 km/h | 45 km/h |
| Overall Dimensions (L×W×H) | 17.5 × 3.1 × 4.2 m | 19.6 × 2.9 × 4.3 m | 20.1 × 3.2 × 4.4 m | 21.3 × 3.3 × 4.5 m | 22.5 × 3.3 × 4.5 m |
| Total Weight (approx.) | 42,000 kg | 51,000 kg | 56,000 kg | 76,000 kg | 82,000 kg |
| Engine (Typical) | CAT 3406C | CAT 3408 | CAT 3412 | CAT C‑16 ×2 | CAT C‑18 ×2 |
Applications
SJ Petroleum’s truck mounted drilling rigs have been deployed across a wide range of operating environments and project types:
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Shallow-to-Medium Depth Oil & Gas Drilling – Perfect for development wells, infill programs, and exploration in areas where rig mobility is a priority. The ZJ10 through ZJ30 models are particularly well-suited for these applications.
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Workover & Well Servicing – Many SJ truck mounted rigs are dual-purpose units, capable of both drilling new wells and performing heavy workover and well servicing operations. With workover depths reaching 7,500 meters on the ZJ40, these rigs can handle everything from routine maintenance to major interventions.
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Water Well Drilling – Rural water supply projects, agricultural irrigation wells, and municipal water systems all benefit from the self-mobilizing capability of truck mounted rigs.
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Geothermal Exploration & Development – The reliable depth capacity (up to 4,000m) and robust mud circulation systems make these rigs suitable for geothermal gradient drilling and production well installation.
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Remote & Off-Grid Locations – When the road ends, the rig keeps going. The heavy-duty chassis and off-road configuration allow operations in areas where conventional rigs would struggle to reach.
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Arctic & Extreme Cold Climate Drilling – SJ has exported cold-weather truck mounted rigs to Russia for operation in the Orenburg region, where temperatures routinely fall well below freezing. The cold-weather package includes specialized materials, insulation, heating systems, and low-temperature lubricants.
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Desert & Arid Operations – Wide-track tires, enhanced cooling, and sand filtration packages allow reliable operation in hot, dusty environments.
Product Models
| Model Series | Depth Capability (4½" DP) | Max Hook Load | Drive Configuration | Primary Application |
|---|---|---|---|---|
| ZJ10 (SZJ112CZ) | 1,000 m | 1,125 kN | 10×8 chassis | Shallow drilling, water wells |
| ZJ15 (SZJ135CZ) | 1,500 m | 1,350 kN | 10×8 chassis | Development drilling |
| ZJ20 (SZJ147CZ) | 2,000 m | 1,470 kN | 12×8 chassis | Medium depth exploration |
| ZJ30 (SZJ170CZ) | 3,000 m | 1,700 kN | 14×8 chassis | Deeper drilling, heavy workover |
| ZJ40 (SZJ225CZ) | 4,000 m | 2,250 kN | 14×10 chassis | Heavy-duty drilling & workover |
| XJ Series Workover Rigs | Workover-focused | 90–110 ton | 8×8 / 10×8 | Well service, light drilling |
| BigEasy Series | 5,000–7,000 m | 3,150–4,500 kN | Trailer-mounted (no crane) | Ultra-fast mobilization |
Key distinctions: The ZJ series represents SJ’s core truck mounted drilling rig lineup, with dual drilling/workover capability. The XJ series is optimized for workover and well servicing operations, particularly suited for shallow-to-medium well repair programs. The BigEasy series — jointly developed with LOADMASTER — offers a trailer-mounted crane‑free design that sets a new benchmark for deployment speed.
Why Choose SJ Petroleum Machinery?
✅ Backed by Sinopec – As a wholly-owned subsidiary of Sinopec Oilfield Equipment Corporation, SJ combines the resources and stability of a Fortune 500 parent company with the agility and specialization of a dedicated manufacturing operation.
✅ 80+ Years of Engineering Heritage – Founded in 1941, SJ Petroleum has been designing and building oilfield equipment for over eight decades. Our truck mounted rigs are not prototypes or imported commodity machines—they’re mature products refined through decades of field experience and continuous improvement.
✅ API-Certified & Globally Recognized – Full compliance with API Spec 4F, 7K, 8C, and API Q1. Our drilling rigs have earned "China Top Brand” recognition and have been exported to North America, Russia, the Middle East, Africa, and throughout Asia.
✅ Proven in Extreme Climates – From the deserts of the Middle East to the frozen plains of Siberia, SJ rigs have operated in temperatures ranging from +45°C down to -45°C and stored at -60°C.
✅ True Customization – No two drilling programs are identical, so we don’t believe in one-size-fits-all solutions. From climate-specific packages (desert coolers, arctic heaters) to power train choices (mechanical, VFD electric, or hybrid) and automated accessories like pipe handling systems, we adapt the rig to your conditions.
✅ Integrated Solutions Provider – SJ doesn’t just sell you a rig. We handle the entire lifecycle: feasibility study, engineering design, factory acceptance testing, shipping logistics, on-site commissioning, operator training, and ongoing spare parts support.
✅ Competitive Pricing Without Quality Compromises – By leveraging China’s efficient manufacturing supply chain while maintaining strict API quality controls, we deliver truck mounted drilling rigs that outperform expectations on both price and reliability.
Frequently Asked Questions (FAQ)
Q1: What is the typical setup time for an SJ truck mounted drilling rig once it arrives on location?
With the hydraulic mast and substructure raising systems, most SJ truck mounted rigs can be rigged up and ready to spud within a few hours of arrival, depending on site conditions and crew experience. The truck is driven directly to the well center, jacks are deployed for leveling, the mast is hydraulically raised, and the substructure is positioned—all without external cranes.
Q2: Are your truck mounted rigs suitable for both drilling and workover operations?
Yes, most SJ ZJ series truck mounted rigs are designed as dual-purpose units. They can drill new wells at their rated depth capacity and also perform heavy workover operations. Dedicated XJ series rigs are optimized specifically for workover and well service applications.
Q3: What brands of engines and transmissions do you use?
SJ Petroleum typically equips its truck mounted rigs with Caterpillar diesel engines and Allison Oil Field Series transmissions — both globally recognized for reliability and performance in demanding oilfield environments. Alternative configurations using other premium brands are available upon request.
Q4: Does the rig require a separate crane for mast erection?
No. The mast is raised hydraulically using integrated cylinders. The entire rig-up process is designed to be crane-free, reducing equipment rental costs and improving safety.
Q5: Can you customize a rig for extreme cold or desert conditions?
Absolutely. SJ has delivered cold-weather truck mounted rigs to Russia that operate reliably down to -45°C, with storage capability down to -60°C. For desert operations, we offer enhanced cooling systems, sand filtration, and hot-weather lubricants. Just tell us your operating environment, and we’ll engineer the appropriate package.
Q6: What certifications do your rigs hold?
All SJ truck mounted drilling rigs are designed and manufactured in compliance with API Spec 4F (Structures), API 7K (Drilling Equipment), and API 8C (Derricks). Our manufacturing facilities are certified to ISO 9001 and HSE standards.
Q7: Do you provide training for local crews?
Yes. Every SJ drilling rig purchase includes comprehensive on-site commissioning and training services for your drilling and maintenance personnel. We cover everything from daily operating procedures and safety protocols to scheduled maintenance and emergency response.
Q8: What is the typical lead time for a truck mounted drilling rig?
Lead times vary based on the model and customization level, but typical delivery for standard configurations ranges from 8 to 12 months after order confirmation. Expedited delivery may be available for certain models—please contact our sales team to discuss your timeline.
Q9: Does SJ provide spare parts and after-sales support internationally?
Yes. SJ maintains a global spare parts inventory and works with regional partners to ensure timely fulfillment of routine wear parts and critical spares. Our after-sales support team is available for troubleshooting and technical assistance.
Q10: Can these rigs be equipped with a top drive?
Yes. SJ truck mounted drilling rigs can be optionally equipped with a top drive system for applications where enhanced drilling efficiency and directional drilling capability are required.
Q11: What is the maximum road travel speed of these rigs?
While the chassis is capable of higher speeds, the maximum governed travel speed is typically limited to 45 km/h (approximately 28 mph) for safe operation of a fully loaded truck mounted rig.
Q12: How does SJ compare to other truck mounted drilling rig manufacturers?
SJ Petroleum offers a combination that is difficult to match: over 80 years of heritage, API certification, Sinopec backing, proven exports to the Americas, Europe, Africa, and Asia, true customization capability, and competitive pricing. Our rigs are not low-cost compromises—they are professionally engineered, field-proven machines built to international standards.
