CBTL-4 Tandem Hydraulic Gear Pump

CBTL-4 Gear Pumps Overview

The CBTL-4 is a double (tandem) external gear pump, designed to provide two independent flow outputs from a single drive shaft. It is widely used in mobile and industrial hydraulic systems where multiple circuits need to operate simultaneously. Compared with single pumps (CBT/CBN), CBTL offers higher flexibility and efficiency for complex systems.

Features and Benefits

• Double-section gear structure (tandem design)

• Aluminum alloy housing, lightweight

• Axial clearance automatic compensation

• Multiple shaft and port configurations

• Drives two hydraulic circuits simultaneously

• Reduces installation space and cost

• Improves system efficiency and integration

• Easy replacement for OEM tandem pumps

Model Codes

Technical Data

Model	Displacement (ml/r) (Front/Rear)	Rated Pressure (MPa)	Max Pressure (MPa)	Min Speed (r/min)	Rated Speed (r/min)	Max Speed (r/min)	Vol. Efficiency (%)	L1 (mm)	L2 (mm)	L (mm)	Front Pump Port (D/a/b mm)	Rear Pump Port (D/c/d mm)	Weight (kg)
CBTL-F410/F410-A***	10 / 10	20	25	800	2500	3000	92	57	166	226.5	23 / 47.6 / 22.2	23 / 47.6 / 22.2	5.5
CBTL-F416/F410-A***	16 / 10	20	25	800	2500	3000	92	60.3	172.5	233	23 / 47.6 / 22.2	23 / 47.6 / 22.2	5.8
CBTL-F416/F416-A***	16 / 16	20	25	800	2500	3000	92	—	175.8	239.5	23 / 47.6 / 22.2	23 / 47.6 / 22.2	6.1
CBTL-F420/F410-A***	20 / 10	20	25	800	2500	3000	92	—	177	237.5	23 / 47.6 / 22.2	23 / 47.6 / 22.2	6.0
CBTL-F420/F416-A***	20 / 16	20	25	800	2500	3000	92	62.5	180.3	244	26 / 52.4 / 26.2	26 / 52.4 / 26.2	6.3
CBTL-F420/F420-A***	20 / 20	16	20	600	2500	3000	92	—	182.5	248.5	26 / 52.4 / 26.2	26 / 52.4 / 26.2	6.5
CBTL-F425/F410-A***	25 / 10	20	25	800	2500	3000	92	—	175.3	244	26 / 52.4 / 26.2	23 / 47.6 / 22.2	6.3
CBTL-F425/F416-A***	25 / 16	20	25	800	2500	3000	92	65.5	183.6	250.5	26 / 52.4 / 26.2	26 / 52.4 / 26.2	6.5
CBTL-F425/F420-A***	25 / 20	16	20	600	2500	3000	92	—	188.6	255	26 / 52.4 / 26.2	26 / 52.4 / 26.2	6.7
CBTL-F430/F410-A***	30 / 10	20	25	800	2500	3000	92	67.8	187.6	248	26 / 52.4 / 26.2	23 / 47.6 / 22.2	6.5
CBTL-F430/F416-A***	30 / 16	20	25	800	2500	3000	92	67.8	193	254.5	26 / 52.4 / 26.2	23 / 47.6 / 22.2	6.7

CBTL-4 Hydraulic Gear Pump Installation Dimensions

Applications

• Dump trucks (lifting + steering system)

• Construction machinery (loaders, cranes)

• Agricultural equipment (tractors, harvesters)

• Hydraulic power units (dual circuits)

• Material handling equipment

Packaging & Delivery

CBTL-4 pumps are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

CBTL-4 Hydraulic Gear Pump FAQ

1. What is the difference between CBT and CBTL?
CBT is a single pump, while CBTL is a double (tandem) pump with two outputs.

2. Can both sections work independently?
Yes, each section supplies a separate hydraulic circuit.

3. What is the main advantage of CBTL-4?
It reduces system complexity by combining two pumps into one unit.

4. Is it suitable for dump trucks?
Yes, very common for tipping + steering combined systems.

5. Can displacement be customized?
Yes, front and rear pump displacements can be matched as needed.

6. What materials are used?
Typically aluminum alloy housing with precision gear components

Certifications & Quality Assurance

CBTL-4 pumps are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.

FAQ

1.How does the variable displacement work?

The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.

2.What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.

3.What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.

4.Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.

5.What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.

Green Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.

All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.

To meet the diverse needs of different industries, the green hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.

Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.