Shijiazhuang Laiye Import& Export Trading Co., Ltd. is one of the leading manufacturers and suppliers of hlcb series — constant flow pump in China, also supports customized service. If you're going to wholesale high quality hlcb series — constant flow pump made in China, welcome to get pricelist from our factory.
Product Overview
The HLCB is a constant flow pump. Gear pump and flow valve in one housing. One unit, two jobs.
It does one thing well: keeps flow steady. Engine revs up, flow stays the same. Engine idles down, flow stays the same. That is the point. Power steering does not like change. It wants steady flow. Without it, steering gets heavy at idle. Or twitchy at high speed. The HLCB eliminates the problem.
Small package. Simple design. Fits in tight spots. Fewer external components means fewer leak points and less maintenance.
Four displacements: 6, 10, 16, and 20 mL/r. Constant flow options to match your system.
The HLCB Series - Constant Flow Pump ensures reliable, stable flow for hydraulic steering systems.
What Makes It Different
Built-in valve. No external flow control needed. The pump regulates itself. Fewer parts, less plumbing, fewer leak points.
Flow stays steady. Speed changes, flow does not. That is the whole point. Engine at idle or full throttle-steering feels the same.
Small package. Fits where other pumps do not. Tight engine compartments are no problem.
Simple design. Fewer parts. Less to break. Easier to service.
Axial clearance compensation. Keeps efficiency high as internal parts wear. No gradual performance loss.
Four displacement choices. Pick what fits your system. No need to oversize or undersize.
Power steering ready. That is what it is built for. Agricultural and construction equipment. Tractors, loaders, forklifts. Anything with power steering.
Specifications
| Parameter | Value |
|---|---|
| Series | HLCB |
| Displacement range | 6 - 20 cc/rev |
| Rated pressure | 10 MPa |
| Max. pressure | 12.5 MPa |
| Pressure adjustment range | 5 - 12.5 MPa |
| Rated speed | 2000 RPM |
| Speed range | 800 - 3000 RPM |
Model Configurations
| Model | Displacement (mL/r) | A (mm) | B (mm) | C (mm) | ΦD (mm) |
|---|---|---|---|---|---|
| HLCB-E306HL | 6 | 47 | 102 | 160 | 14 |
| HLCB-E308HL | 8 | 48.25 | 104.5 | 162.5 | 14 |
| HLCB-E310HL | 10 | 49.75 | 107.5 | 165.5 | 14 |
| HLCB-E312HL | 12 | 51.75 | 111.5 | 169.5 | 14 |
| HLCB-E314HL | 14 | 52.85 | 113.5 | 171.7 | 14 |
| HLCB-E316HL | 16 | 54.25 | 116.5 | 174.5 | 14 |
| HLCB-E320HL | 20 | 57.25 | 122.5 | 180.5 | 14 |
| HLCB-E325HL | 25 | 61.25 | 130.5 | 188.5 | 14 |
For complete performance data and dimensional information, consult the HLCB Series - Constant Flow Pump specifications above.
Where You Use These Pumps
Tractors. Power steering needs constant flow. The pump delivers. Day after day in the field.
Loaders. Steering has to be reliable. The pump keeps it steady, even under load.
Forklifts. Precise steering control in tight spaces. Constant flow makes it possible.
Harvesters. Long hours in dusty fields. Steering consistency matters for operator comfort.
Utility vehicles. Steering at all speeds. The pump handles it without drama.
Excavators. Steering and tracking. Steady flow means predictable control.
Power steering systems need steady flow. The HLCB Series - Constant Flow Pump provides it.
How We Build These Pumps
Casting
Iron castings arrive at our foundry. Each one is inspected for defects. Bad castings do not move to the next step.
Machining
Housings go through precision machining. Bores, ports, mounting faces. Everything held to tight tolerances. Good machining means good performance.
Gear grinding
Gear teeth are ground to final size. Clearances checked. Efficiency starts here.
Valve assembly
The constant flow valve is assembled. Spring rates set. Pressure adjusted. The valve must respond consistently.
Assembly
Gears go into the housing. The valve goes on top. End covers and seals fitted. Fasteners torqued to spec.
Testing
Every pump runs on the test stand. Flow checked at multiple speeds. Pressure verified. If it does not pass, it does not ship.
Packing
Small orders in cartons. Bulk orders in plywood cases. Test reports included on request.
Shipping
Sea, air, rail, truck. Worldwide delivery. Tracking provided.
About the Company
We started in 1988. Over 35 years of building hydraulic components. Our team has more than 200 people. Some have been here for twenty years. They know the product.
We are a factory. We machine, assemble, and test everything ourselves. One roof. Full control over quality and delivery.
We ship over 10,000 containers a year. To more than 20 countries-Russia, Europe, the Middle East, South America, Southeast Asia.
Quality
Every batch goes through at least 10 inspections. Each pump runs on its own test stand. Flow, pressure, efficiency-we check everything.
Engineering
We have real engineers on staff. Senior industry experts advise us. Our team keeps improving the product.
What we offer
12-month warranty from Bill of Lading date. Support from people who know hydraulics. Shipping by sea, air, rail, truck, or express. Export packaging that protects your order.
FAQ
Q: What is the difference between the HLCB and a standard gear pump?
A: A standard gear pump delivers flow that changes with speed. The HLCB delivers constant flow regardless of speed. It has a built-in flow control valve that regulates output automatically. Standard gear pumps do not have this feature.
Q: What constant flow options are available?
A: Constant flow options vary by displacement. The HLCB can be configured to deliver specific flow rates to match your steering system requirements. Contact us with your flow needs and we will recommend the right configuration.
Q: What is the advantage of a built-in flow control valve?
A: No external valve needed. No extra plumbing. Fewer components means fewer leak points. The pump regulates its own flow. Simpler installation.
Q: What is axial clearance compensation?
A: As internal parts wear, clearances open up. Efficiency drops. The HLCB compensates automatically. Clearances adjust to maintain performance over the pump's service life.
Q: What materials are used in the HLCB?
A: Cast iron housing. Hardened steel gears. Durable and reliable for long-term operation.
Q: What applications is the HLCB suitable for?
A: Agricultural equipment, construction equipment, industrial trucks, mobile equipment. Any machine with power steering.
Hot Tags: hlcb series — constant flow pump, China hlcb series — constant flow pump, manufacturers, suppliers, factory, 2 spool hydraulic directional control valve, directional flow control valve, hydraulic dcv valve, hydraulic directional, hydraulic pilot operated directional control valve, sectional valve
