7 Bolts 12.25*4" Heavy-Duty Trailer Electric Brake for 9K-10K Axle

• After-sales Service: Yes
• Warranty: 1 Year
• Type: Brake Drums
• Model NO.: MZ071
• Certification: ISO/TS16949, ISO14001, ISO9001, ISO9002, AMECA, ECE
• Classification: Drum
• Drum Brakes Classification: Brake Drum
• Main Market: North America, Oceania
• Brake Size: 12.25*4"
• Rated Axle Capacity: 9000-10000lbs
• Included Components: Lh + Rh Brake Assembly
• Brake Type: Heavy Duty Electromagnetic Brake
• Surface Treatment: E-Coated or Dacromet
• Packaging: 2PCS/Set (1L+1r), in Strong Box
• Lead Time: 30-45 Days Depending on Quantity
• Use: Trailer Parts
• Purpose: for Replace/Repair
• Parts: Trailer Axles
• Max Payload: 10000lbs
• Size: 12.25*4 Inch
• Payment: T/T
• Friction Material: Non-Asbestos Bonded Brake Shoes
• Installation Side: Left & Right
• Transport Package: Standard Package
• Specification: 12.25 inch
• Trademark: Mester
• Origin: China
• HS Code: 8708309990
• Production Capacity: 500000/Year

Product Description

Specification

The Products certifications won are		Other brake sizes we offer
QAI - North America	ADR - Australia	7 inch	10 inch	CUSTOMIZED
CSA - Canada IATF16949	ECE - European Union	12 inch	12.25 inch
MOQ: 500 pcs(For reference only, determined by actual packing quantity)         PAYMENT: T/T 30% as deposit, 70% final payment before shipment.
We offer a full range of brake assemblies specially designed for the American trailer market, covering all major sizes such as 7 inch, 9inch, 10 inch, 12 inch, 12.25 inch that compatible with LIPPERT, JAYCO, DEXTER,HORIZON trailers. Our portfolio includes mechanical brakes, hydraulic brakes, and electromagnetic brakes to meet diverse towing needs across utility trailers, caravans, horseboxes, and boat trailers.
Our brakes are manufactured in accordance with QAI series certificate, fully meet the quality and technical requirements of the US market.
Whether you're a trailer manufacturer looking for consistent OEM/ODM supply or a parts distributor focused on the replacement market, we deliver products trusted by North American professionals.
We also support: 1,Private labeling & logo branding 2,Fast sample preparation 3,Long-term, stable delivery for OEM/ODM contracts
Backed by years of export experience, our braking systems combine precision engineering, reliability, and compliance, helping you stay ahead in a highly competitive market.

Axles

Beake 

The annual output of various Axle is 300,000 sets. 

Electromagnetic brake, with an annual output of 5 million sets. And hydraulic brakes, mechanical brakes

Brake Shoes, Hub and Disc

Other Trailer Parts

Covers adapted products for the three markets: American, Australian, and European.

We also specialize in the production of various trailer parts, achieving 90% self-production.

Packing & Delivery

Our packaging is divided into two types, one is iron bracket and the other is wooden pad.

Company Profile

MESTER BRAKE SYSTEM(SHANDONG) CO.,LTD

MESTER was established in 2006 and located in Weifang city of China, our company is a Sino-US and Sino-German joint venture specializing in the manufacturing of trailer and caravan components, including axle assemblies, brake assemblies, hubs and drums, spring suspensions, couplers, and more.
 
Over 90% of our products are exported to markets in North America and Oceania. We are certified with ISO 9001, TS16949, and CSA standards, reflecting our commitment to quality and international compliance.
 
With a production facility covering 8,000 square meters and a dedicated team of over 500 employees — including 25 skilled technicians focused on R&D — we ensure continuous innovation and high standards in every product we deliver.
 
All of our products undergo a rigorous series of quality tests before they reach you. We provide them with confidence, knowing they offer the reliability and safety you expect.

Testing center equipments

Jilin domestic bench testing machine
2 million yuan per unit

USA Link and domestic made brake dynamometer

9 million yuan per unit
 
all necessary features of the brake assembly during its usage on trailers could be simulated and tested, by using above two equipment.

Other test equipments

1,Axle fatigue testing machine, test every model of axle assembly during a certain period, ensure axle's quality.
 
2,Twin-column cylinder endurance test machine, pressure test machine, used for cylinder, rubber plug and other parts.
 
3,Salt spray test machine, temperature and humidity altering test machine, ozone aging test system, to check the quality of e-coating, galvanizing, darcromet treated parts.
 
4,10T electric universal testing machine, 30T hydraulic testing machine, used to test the heck brake shoe and other parts' welding, bonding or other connecting's strength, steel material's tensile strength, yield, and elongation, along with pulling testing for spring and cable parts.
 
5,Magnetometer, for check the residual magnetism of magnet steel shell after being charged .
 
6,Carbon-sulfur analyzer, pulling universal testing machine, Brinell tester, Rockwell tester, Vickers tester, for inspecting the steel plate, square or round steel rod, steel pipe, casting blank's chemical components, tensile strength, yield, elongation, and other mechanical feature. 
 
7,Metallographic analysis, for casting parts like hub, drum, disc, caliper, coupling, etc.
 
8,Spring twist and pull fatigue test, checking spring of every batch.
 
9,Bolt test.
 
10,Constant speed testing machine, for checking the lining's friction performance stability.

Stamping Workshop

Backing Plate Workshop

Brake Shoes Workshop

FAQ

1. Who are we?
We are Mester Brake System (Shandong) Co., Ltd., headquartered in Weifang City, Shandong Province, with a total factory area of 80,00square meters, 500 employees and 60 technicians. You can trust us.
 
2. What can you buy from us?
Brake assembly, axle assembly, brake pads, RV, various chassis parts and accessories
 
3. How do we ensure quality?
We are integrated with R&D and manufacturing. From the beginning of material testing, manufacturing of goods, and product testing, we are all done by ourselves.
 
4. What are our advantages? Why choose to buy from us?
1. Our sales volume ranks among the top three in China, and we are cooperated with North America, Europe, Australia and other countries
2. We are integrated with manufacturing and R&D, and the quality is guaranteed
3. The company has been established for 20 years and has strong strength
4. Passed many certifications, including ECE, QAI, ADR, CSA and other tests
 
5. We accept currencies: US dollars, euros, RMB, British pounds, Canadian dollars, etc.