SGJ350 Series Cementing Truck

Technical Specifications

Parameter	SGJ350-13 (GJC50-13)	SGJ350-17 (GJC40-17)	SGJ350-25 (GJC70-25)	SGJ350-30 (GJC50-30)
Pump Power	350 HP	350 HP	350 HP	350 HP
Max. Working Pressure	50 MPa (7,252 psi)	40 MPa (5,800 psi)	70 MPa (10,153 psi)	50 MPa (7,252 psi)
Max. Displacement	1,376 L/min (362 GPM)	1,641 L/min (434 GPM)	2,473 L/min (653 GPM)	2,866 L/min (757 GPM)
Pump Type	Triplex Plunger Pump	Triplex Plunger Pump	Triplex Plunger Pump	Triplex Plunger Pump
Drive Type	Diesel Engine Drive	Diesel Engine Drive	Diesel Engine Drive	Diesel Engine Drive
Mounting	Truck-Mounted	Truck-Mounted	Truck-Mounted	Truck-Mounted
Mixing System	ACM Automatic Control	ACM Automatic Control	ACM Automatic Control	ACM Automatic Control
Certification	API, ISO9001, HSE	API, ISO9001, HSE	API, ISO9001, HSE	API, ISO9001, HSE

Typical Truck-Mounted Cementing Unit Specifications:

Parameter	Typical Specification
Chassis	Heavy-duty 6×4 or 6×6 truck chassis
Engine	High-power diesel engine
Transmission	Heavy-duty transmission with power take-off
Pump	350 HP triplex plunger pump
Mixing System	ACM automatic mixing control with A&A mixer
Water Tank	Integrated water supply system
Control System	Automatic density control with dual densitometers
Operating Temperature	-20°C to +50°C

Applications

The SGJ350 Series Cementing Truck is deployed across a broad spectrum of oilfield operations:

• Deep Well Cementing – High-pressure, high-displacement cementing for deep and ultra-deep wells, meeting the demands of high pressure, high displacement, and long-duration continuous operations

• Shallow to Medium Well Cementing – Single pump configuration for cost-effective operations

• Page 4 / Oil & Gas 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

• Desert & Extreme Environment Operations – Specialized configurations available for high-temperature, desert, and high-cold conditions

Product Types

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 (350×2 HP) – 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 SGJ350 – Self-propelled for rapid mobilization and highway transport. Ideal for onshore operations with frequent rig moves.

8. Trailer-Mounted SGJ350 – Towable configuration for short-distance moves and operations where truck access is limited.

9. Skid-Mounted SGJ350 – Compact, portable packages for offshore platforms and space-constrained locations.

By Drive Type:

10. Diesel-Driven SGJ350 – Conventional diesel engine drive for onshore operations.

11. Electric-Driven SGJ350 – Motor-driven configuration for clean, quiet operation—ideal for environmentally sensitive areas and offshore platforms.

OEM & Customization Solutions

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 (350×2 HP) for deep wells

• Power System Integration – Choose diesel or electric drive with your preferred engine/motor specifications

• 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

• Certification – Arrange API, DNV, or other certifications for international operations

Why Choose SJ Petro?

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. We have accumulated over 30 years of complete cementing equipment R&D and manufacturing experience.

Complete In-House Manufacturing

SJ Petro has established seven production lines for drawworks, gear boxes, cylinders, masts, high pressure manifolds, plunger pumps and post treatment, and three assembly lines for drilling rigs, workover rigs, and cementing and fracturing equipment. Annual production capacity includes 200 cementing units, 1,000 triplex pumps, and over 150,000 high pressure manifolds.

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”.

Ultra-Deep Well Proven

SJ Petro cementing equipment recently set a new domestic record for the deepest 196.85mm liner cementing at 8,800.88 meters in the Tarim Basin, overcoming extreme ultra-high temperature, high pressure, and high sulphur conditions.

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.

Frequently Asked Questions

Q: What is the SGJ350 Series Cementing Truck?

A: The SGJ350 Series is a truck-mounted, diesel-driven cementing unit powered by a 350 HP plunger pump. It is available in four models (SGJ350-13, -17, -25, -30) with maximum working pressures from 40 MPa to 70 MPa and displacements from 1,376 L/min to 2,866 L/min.

Q: What is the difference between single pump and twin pump configurations?

A: Single pump configurations are light-duty with lower maintenance costs, designed for shallow to medium wells. Twin pump configurations (350×2 HP) provide high-pressure, high-displacement capability for deep wells with operational redundancy.

Q: What is the ACM automatic mixing control system?

A: The ACM system is SJ Petro’s advanced automatic density control and mixing system that ensures slurry density accuracy and consistency. The latest-generation system features a new A&A mixer, dual densitometers, and advanced discharge manifold design.

Q: What is the maximum pressure and displacement of the SGJ350 Series?

A: The SGJ350 Series covers maximum working pressures from 40 MPa to 70 MPa (5,800 psi to 10,153 psi) and maximum displacements from 1,376 L/min to 2,866 L/min.

Q: What mounting configurations are available?

A: SGJ350 cementing units are available in truck-mounted, trailer-mounted, and skid-mounted configurations.

Q: Can the SGJ350 be used for deep well cementing?

A: Yes. The SGJ350 Series is specifically designed for deep oil and gas well cementing with high pressure, high displacement, and long-duration continuous operation capability. SJ Petro cementing equipment has successfully operated at depths up to 8,800.88 meters.

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, power system, 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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