The SGJ350-25 is mounted on a heavy-duty 6×6 truck chassis (Mercedes-Benz Actros 3344 or equivalent) with a 320 kW engine, providing:
Rapid wellsite-to-wellsite mobility – No disassembly required for transport
Excellent off-road performance – 6×6 all-wheel drive for challenging terrain
Complete self-contained operation – All systems integrated into a single self-propelled unit
Maximum travel speed – Highway-capable for rapid deployment
| Parameter | SGJ350-25 (GJC70-25) Specification |
|---|---|
| Pump Configuration | Twin-Engine Twin-Pump (2 × 350 HP) |
| Maximum Working Pressure | 70 MPa (10,153 psi) |
| Maximum Displacement | 2,473 L/min (653 GPM) |
| Maximum Mixing Capacity | 2,300 L/min |
| Density Control Range | 1.2–2.5 g/cm³ |
| Density Control Accuracy | ±0.02 g/cm³ |
| Pump Type | 3ZB-265 Triplex Plunger Pump (2 units) |
| Pump Stroke | 127 mm (5″) |
| Maximum Input Power (per pump) | 265 kW (355 hp) |
| Chassis | Mercedes-Benz Actros 3344 6×6 (or equivalent) |
| Chassis Engine Power | 320 kW |
| Deck Engine | QSX15, 540 hp @ 2,100 rpm |
| Transmission | Allison HD4700OFS |
| Maximum Input Torque | 2,508 N·m |
| Overall Dimensions (L×W×H) | 11,800 × 2,500 × 3,900 mm |
| Total Vehicle Mass | 33,000 kg |
| Operating Temperature | -35°C to +50°C |
| Certification | API, ISO9001, HSE |
The SGJ350-25 Twin Pump Cementing Truck is deployed across a broad spectrum of demanding oilfield operations:
Deep Oil & Gas Well Cementing – High-pressure, high-displacement cementing for deep and ultra-deep wells, meeting the demands of high pressure, large displacement, and long-duration continuous operations
Shale Oil & Gas Development – Supports "small wellsite, large operation” cementing models, with SGJ2500 series units capable of replacing four conventional cementing trucks and one large fracturing truck
Page 4 / Well Completion – Self-dispensing of cement slurry, slurry pumping, displacing slurry, and pressure testing
Acidizing Operations – Pumping acid solutions for well stimulation
Pressure Testing – High-pressure integrity testing of wellbore and surface equipment
Well Washing – Cleanout and flushing operations
Shallow-Well Fracturing – Light fracturing operations in shallow wells
Extreme Environment Operations – Reliable performance from -35°C to +50°C in desert, high-cold, and tropical conditions
SJ Petro offers the SGJ350 Series in multiple configurations:
By Pump Configuration:
1. SGJ350 Single Pump Cementing Truck – Light-duty configuration with lower maintenance costs, designed for shallow to medium wells.
2. SGJ350 Twin Pump Cementing Truck (SGJ350-25) – High-pressure, high-displacement configuration for deep wells, providing operational redundancy.
By Model (Pressure/Displacement Rating):
3. SGJ350-13 (GJC50-13) – 50 MPa / 1,376 L/min
4. SGJ350-17 (GJC40-17) – 40 MPa / 1,641 L/min
5. SGJ350-25 (GJC70-25) – 70 MPa / 2,473 L/min
6. SGJ350-30 (GJC50-30) – 50 MPa / 2,866 L/min
By Mounting Configuration:
7. Truck-Mounted Cementing Units – Self-propelled for rapid mobilization and highway transport.
8. Trailer-Mounted Cementing Units – Towable for short-distance moves.
9. Skid-Mounted Cementing Units – Compact, portable packages for offshore platforms.
By Drive Type:
10. Diesel-Driven Cementing Units – Conventional diesel engine drive for onshore operations.
11. Electric-Driven Cementing Units – Motor-driven configuration for clean, quiet operation—ideal for environmentally sensitive areas and offshore platforms.
Every well presents unique challenges, and SJ Petro’s engineering team delivers tailored solutions through comprehensive OEM and customization capabilities:
Custom Configuration – Choose truck-mounted, trailer-mounted, or skid-mounted based on your operational requirements and site constraints
Pump Selection – Select from SGJ350-13, -17, -25, or -30 based on your pressure and displacement requirements
Single or Twin Pump – Choose single pump for shallow wells or twin pump for deep wells requiring operational redundancy
Chassis Selection – Optional Shaanxi Truck or North Benz chassis with 6×4 or 6×6 driving types
Engine Selection – Optional VOLVO or MWM diesel engines with power ranging from 303 kW to 345 kW
Transmission Options – Available in hydraulic or mechanical gearbox configurations
Mixing System – Select ACM automatic control or manual digital display systems
Complete Package Design – Design and supply entire cementing spreads including water supply truck, dry cement truck, blower, manifold truck, water tank truck, portable cement silo, and accessories
Climate Engineering – Customize for desert, high-cold, tropical, or other extreme environments
China’s Largest Cementing Equipment Manufacturer
SJ Petro is China’s largest cementing equipment R&D and manufacturing base and the "single champion” of China’s cementing equipment manufacturing sector. We are the industry standard setter for cementing equipment in China.
Over 30 Years of Cementing Expertise
SJ Petro began developing cementing equipment in the 1980s. With more than 30 years of continuous engineering and manufacturing experience, we have mastered the design and production of series plunger pumps, automatic mixing control systems, and complete cementing units.
Complete In-House Manufacturing
SJ Petro has established seven production lines and three assembly lines for drilling rigs, workover rigs, and cementing and fracturing equipment. Annual production capacity includes 200 cementing units and 1,000 triplex pumps. We offer 200 models of products falling in four major categories and 12 series.
Proven Global Track Record
More than 220 sets of cementing units have been exported to overseas markets including Indonesia, Algeria, UAE, Kenya, Turkey, Venezuela, and many other countries. SJ Petro products and technical service networks cover China’s major oil and gas fields and the world’s major oil and gas producing regions.
Industry-Leading Quality & Innovation
The "SJ Petro” brand cementing truck has been honored with "National Silver Medal,” "National New Product,” "China Top Brand,” "Ninth Five-Year Science and Technology Innovation Outstanding Project Award,” and "National Science and Technology Progress Award”. The cementing truck was rated as a "National User Satisfaction Product”.
API-Certified Quality
SJ Petro holds API, ISO9001, and HSE management system certifications. We established a cementing and fracturing equipment comprehensive performance testing laboratory and hydraulic testing center, ensuring every product meets the highest quality standards.
One-Stop Solution Provider
Beyond manufacturing, we offer equipment inspection, testing, and major overhaul services. From initial design to field service and spare parts supply, SJ Petro delivers complete oil and gas exploration and production equipment solutions.
Q: What is the SGJ350-25 Twin Pump Cementing Truck?
A: The SGJ350-25 is a truck-mounted, diesel-driven twin-engine twin-pump cementing unit powered by two 350 HP triplex plunger pumps. It delivers a maximum working pressure of 70 MPa (10,153 psi) and a maximum displacement of 2,473 L/min (653 GPM).
Q: What is the advantage of a twin pump configuration?
A: The twin-engine twin-pump configuration provides operational redundancy—if one power train requires maintenance, the unit can continue operating on the other. It also delivers higher pressure and displacement capability for deep well cementing operations.
Q: What is the maximum mixing capacity of the ACM system?
A: The ACM-IV.1 automatic mixing control system delivers a maximum mixing capacity of 2,300 L/min with density control accuracy of ±0.02 g/cm³.
Q: What is the density control range?
A: The density control range is 1.2 to 2.5 g/cm³.
Q: What chassis and power train does the SGJ350-25 use?
A: The SGJ350-25 is mounted on a Mercedes-Benz Actros 3344 6×6 chassis (or equivalent) with a 320 kW engine. The deck engine is a QSX15 delivering 540 hp at 2,100 rpm, paired with an Allison HD4700OFS transmission.
Q: What is the operating temperature range?
A: The SGJ350-25 operates reliably from -35°C to +50°C. Specialized configurations are available for extreme conditions.
Q: What are the overall dimensions and weight?
A: The SGJ350-25 measures 11,800 × 2,500 × 3,900 mm and has a total vehicle mass of 33,000 kg.
Q: Are SJ Petro cementing products API certified?
A: Yes. SJ Petro holds API, ISO9001, and HSE management system certifications.
Q: Do you offer OEM or customized solutions?
A: Absolutely. We offer comprehensive customization including mounting configuration, single or twin pump, pressure/displacement rating, chassis selection, engine selection, transmission options, mixing system, complete package design, and climate engineering.
Q: What is included in a complete cementing equipment package?
A: A complete package includes cementing truck/skid/trailer, water supply truck, dry cement truck (or vertical cement silo), blower, manifold truck, water tank truck (or water tank), portable cement silo, and accessories.
Q: What is the manufacturing capacity for cementing units?
A: SJ Petro produces 200 cementing units and 1,000 triplex pumps annually.
Q: Where have SJ Petro cementing units been exported?
A: More than 220 sets have been exported to Indonesia, Algeria, UAE, Kenya, Turkey, Venezuela, and many other countries.
Q: Do you provide after-sales support and spare parts?
A: Yes. We offer comprehensive after-sales support including spare parts supply, equipment inspection, testing, and major overhaul services.
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