BK10 Series Static Wet Hydraulic Brakes – A Professional Braking Solution for Orbit Hydraulic Motors

BK10 Series Static Wet Hydraulic Brakes – A Professional Braking Solution for Orbit Hydraulic Motors

The BK10 series static wet hydraulic brakes are wheel-side braking solutions specifically designed for hydraulic Orbit motors. They are widely used in scissor lifts, agricultural machinery (such as combine harvesters and tractors), forestry machinery, forklifts, and other low-speed traveling equipment requiring wheel mounting.

This series of brakes uses a spring-loaded, hydraulically released operating mode and features static braking lock-up. It can completely replace similar products manufactured in Europe and America, performing particularly well in applications requiring real-load holding and emergency stopping capabilities.

I. Correct Usage of BK10

1. Installation Points

The BK10 series brakes are designed for wheel-side drives. Before installation, please ensure that the host system parameters match the selected model. The following points should be noted during installation:

Hydraulic Circuit Connection: The brake has dual brake release ports (7/16-20UNF O-ring interface), one for oil inlet and the other for bleed air or connect to external brake fluid.

Oil drain port requirements: The maximum pressure at the oil drain port must not exceed 0.05 MPa. It must have a separate return line to the oil tank and must not be connected in parallel with the return oil line; otherwise, excessive back pressure may cause the brake to fail to release completely or damage the seals.

Connecting flange: The flange specifications are Φ101.6×12.7mm, flange pitch circle Φ177.8mm, and 4×Φ13mm mounting holes. During installation, use the specified bolt tightening torque and apply thread-locking adhesive.

Shaft extension connection: The output shaft is a Ø38 tapered shaft (1:8), equipped with a 7.96×7.96×31.75mm flat key. Ensure the shaft and load fit accuracy during installation.

Brake chamber filling: Before installation, add hydraulic oil to the brake chamber as required. The lubricating oil volume is approximately 100~120cm³, ensuring the brake pads are in an oil-lubricated state.

2. System Configuration

The BK10 employs a spring-loaded braking and hydraulic release principle. During normal vehicle operation, pressurized oil is supplied to the brakes, overcoming the spring force to separate the brake pads and release the brakes. When the vehicle stops or the system loses pressure, the spring force automatically presses the brake pads back together, achieving static brake lock-up. This design ensures that the equipment can still automatically brake in the event of a sudden hydraulic system failure, providing true load holding and emergency stopping capabilities.

Air must be purged from the brake lines before use. Bleeding method: Starting with the brake furthest from the master cylinder, loosen the bleed screws sequentially, repeatedly pressing the brake pedal several times until no air bubbles appear in the flowing oil. Then tighten the bleed screws.

3. Operating Precautions

The minimum hydraulic pressure for releasing the brakes is 2.8 MPa, and the maximum operating pressure of the braking system must not exceed 21 MPa.

The maximum brake speed is 300 rpm, suitable for low-speed travel equipment. Do not exceed this speed.

Before starting the brakes, check that the oil level is sufficient to avoid dry friction of the brake pads due to insufficient oil.

When the equipment is not in use for extended periods, it is recommended to periodically start the device and allow the brakes to operate several times to prevent piston jamming.

II. Common Problem Troubleshooting and Repair Methods

1. Brake Failure or Insufficient Braking Force

Possible Causes: The control piston is jammed due to burrs or dirt; brake line leaks or blockages leading to insufficient brake fluid supply and decreased brake fluid pressure; excessive wear of brake pads.

Troubleshooting Methods: Check the brake lines for leaks and confirm that the brake system pressure has reached the 2.8MPa release pressure. If the lines are normal, disassemble and clean the control piston, remove burrs, or refit it.

Repair Measures: Replace worn brake pads; clean the valve body and replace the seals; repair or replace the line connectors.

2. Inability to Release or Slow Release After Braking

Possible Causes: Excessive back pressure at the drain port; insufficient control fluid pressure; jammed control piston or worn rectangular ring; contaminated brake fluid causing difficulty in return flow.

Troubleshooting Methods:

1. Check if the drain line returns to the oil tank separately, and confirm that the drain port pressure is ≤0.05MPa; check if the system release pressure reaches 2.8MPa; check the cleanliness and viscosity of the brake fluid.

Repair Measures: Lay a separate drain line; increase the control oil pressure to the specified value; clean the valve core and replace the seals; replace the brake fluid.

3. External Brake Leakage

Possible Causes: Aging or damage to seals at the joints of plugs, inlet/outlet ports, or valve covers.

Troubleshooting Methods: Visually inspect the leak location and observe any signs of oil seepage.

Repair Measures: Replace the corresponding seal and retighten the connecting bolts.

4. Vibration or Abnormal Noise During Braking

Possible Causes: Brake drum roundness out of tolerance; loose brake friction pads; loose mounting flange.

Troubleshooting Methods: Check the roundness of the brake drum, and adjust it on a lathe if necessary; check for loose friction pads; check the tightness of the brake backing plate.

Repair Measures: Re-rivet or replace friction plates; tighten loose flange bolts.

5. Repair Tips

After disassembly and cleaning, check the condition of all seals and pistons. Brake parts must not be welded or straightened; replacement is mandatory. It is recommended to replace aged seals during repair to ensure brake performance is restored to factory settings. If internal damage is severe, complete replacement is recommended for safety. If disassembly is necessary, please refer to the product drawings for sequential disassembly and assembly.

III. Product Advantages Most Concerning Distributors

1. High Profit Margin and Strong Market Competitiveness

The BK10 series static wet brake directly competes with similar international products, but offers a significant price advantage. A reasonable factory pricing system provides distributors with ample profit margins, while product performance is comparable to European and American brands, helping distributors stand out in the fierce market competition.

2. Fast Inventory Turnover and One-Stop Procurement

The product is available in only two torque specifications—BK10-1 (1150Nm) and BK10-2 (1700Nm)—covering the vast majority of Orbit motor matching needs. Streamlined specifications mean less inventory pressure, lower capital occupation, and higher turnover efficiency.

Simultaneously, we can also supply Orbit hydraulic motors (BMM/BMP/BMR/BMH/BMSY/BMT/BMV series, etc.), allowing distributors to purchase motor + brake combinations from us in a one-stop shop, significantly reducing procurement and logistics costs.

3. Fast After-Sales Response and Comprehensive Technical Support

Compared to the lengthy after-sales cycles and complex repair processes of European and American brands, we provide rapid after-sales service and timely supply of original parts. Our mature product structure, convenient repair, and highly interchangeable parts significantly reduce after-sales maintenance costs and customer service pressure for distributors.

4. Complete Export Certifications and Guaranteed Quality

Our products have passed SGS authoritative certification audits and comply with export standards such as CE/ISO, selling to many countries and regions worldwide. Quality is guaranteed, and exports are unimpeded.

5. Stable Supply Chain and Controllable Delivery Time

As the source production factory, we have stable production capacity and a comprehensive quality control system. Distributors enjoy stable supply guarantees and flexible ordering policies, eliminating the worries of stockouts and ensuring timely delivery of end-customer orders.

IV. What problems can I solve for you?

For Distributors – Helping you quickly capture the market

What you need most is competitive products, a stable supply, and substantial profit margins. The BK10 series products are technologically mature, reliable, and have a significant price advantage, directly converting existing customer resources. I provide you with stable supply, competitive prices, and comprehensive after-sales support, helping you increase customer loyalty and repurchase rates. OEM customization is also supported to meet your needs for building your own brand.

For OEM Manufacturers – Helping you reduce costs and increase efficiency

What you need most are reliable, parameter-matched, and timely core components. The BK10 series installation dimensions conform to industry standards and can be directly matched with various Orbit motors and wheel-side drive systems. We support customization based on drawings – from mounting flanges and shaft extension types to oil port configurations, everything can be adjusted as needed. Choosing us will reduce procurement costs, optimize your supply chain layout, and provide timely technical support and after-sales guarantees. During the selection phase, we can assist you in determining key parameters such as displacement, flange, shaft extension, and oil port to ensure correct matching.

For Repair Service Providers – Making Repairs More Efficient

The repair market is most concerned about the difficulty in sourcing parts, long lead times, and opaque pricing. The BK10 series brakes have a simple structure and are easy to repair. We have a complete inventory of spare parts and detailed repair instructions, with ample stock and fast delivery. From standard parts to sealing components, we provide a one-stop shop, significantly reducing repair waiting time and improving end-customer satisfaction.

For End Users – Safe, Reliable, Worry-Free and Effortless

The BK10 uses an optimized disc brake pad and spring-loaded design, ensuring reliable braking and a long service life. The output shaft uses the same heavy-duty roller bearings at both ends, providing greater radial load capacity. Whether for aerial work platforms or agricultural machinery, the BK10 provides reliable static braking protection for your equipment.

V. Welcome to Purchase from Us in China

We are a professional hydraulic brake manufacturer in China, with many years of experience in the R&D and production of fully hydraulic brakes. Our products have passed international certifications such as SGS/ISO. Our main products include:

BK10 series static wet hydraulic brakes (BK10-1 torque 1150Nm / BK10-2 torque 1700Nm)

Full series of Orbit hydraulic motors (BMM/BMP/BMR/BMH/BMSY/BMT/BMV, etc., displacement covering 8~800cc/rev)

Full hydraulic steering gear series (101S/OSPC/OSPB/HKUS/BZZ-B, etc.)

Supporting valve products

By sourcing directly from our factory in China, you will receive: competitive factory prices, professional technical support, and a stable supply guarantee. Our products are exported to many countries and regions worldwide and are widely used in construction machinery, agricultural machinery, aerial work platforms, forestry machinery, marine machinery, and other fields, enjoying high customer trust.

We welcome global distributors, OEM manufacturers, and service providers to visit our factory in China to discuss cooperation. Whether you need sample testing, technical consultation, or bulk purchase, we will serve you with a professional attitude and high-quality products.

Contact us now to get our product catalog and pricing! For the latest product specifications, selection guidance, and pricing, please contact our sales staff directly to obtain the official product manual and terms and conditions.