Wenzhou Ruishuo Auto Parts Co., Ltd.
A Global Leader in Commercial Vehicle Window Regulators & Specialized Motor Systems
Wenzhou Ruishuo (Tinzer) is a family-inherited heavy-duty window regulator & window motor manufacturer integrating R&D, production, and sales. Tinzer provides premium system solutions for global commercial vehicles, American heavy-duty trucks, European heavy-duty trucks, passenger cars, and specialized vehicles.
What do we manufacture and supply?
1.Truck/Bus Window Regulators, Motors & Wiper Motors
Tinzer is a leading manufacturer specializing in high-performance window regulators and window motors for the American heavy-duty trucking & European Trucking industry.
Our comprehensive portfolio supports premier OEM standard, including Freightliner, Kenworth, Mack, Peterbilt, Navistar (International), Terex, Westernstar, Oshkosh and American Volvo, with every component precision-engineered to meet or exceed original equipment (OE) specifications.
Driven by a commitment to reliability, we implement rigorous testing protocols to ensure peak durability and road safety under demanding conditions.
Tinzer also possesses China's most comprehensive range of window regulators and wiper systems for European and Japanese heavy duty trucks. Full-series coverage for Mercedes-Benz, Volvo, DAF, Scania, MAN, Iveco, Renault, Ford, Mitsubishi, Isuzu, and Hyundai.
2.SUV & Bus Automation Systems & Components
Designed for business travel and specialized transport, Tinzer has developed a series of high-efficiency automatic door systems and electric step systems for easy access:
Electric Door Systems for Buses, Vans & School Buses: Door systems and opening motors for Mercedes-Benz, MAN, IC buses; BlueBird,school bus, Interna, as well as Mercedes-Benz Sprinter, Ford Transit, Iveco Daily Van, MAN TGE etc.
Electric Step Systems for SUVs & MPVs: Customized sliding, folding power step systems and running-board power step system for global SUV models, including complete power step, controller box and step motors.
3.RV Specialized Motors & Components
Demonstrating exceptional R&D in RV automation, our product line successfully replaces major North American OEM brands.
RV Power Awning Motors: Perfectly compatible with Carefree Longitude, Motorhome Power Awnings, Solera (Lippert), and Dometic.
RV Electric Step Systems: Independently developed electric step assemblies and specialized drive motors for various RV models.
RV Slide-Out Motors: Compatible with various slide-out mechanisms, featuring stable power, silent operation, and easy installation.
4.Civil, Agricultural & Industrial Drive Motors
We are deeply involved in the R&D and production of drive motors across multiple sectors.
Industrial & Specialized Motors: Includes shift actuator motors for Snowmobiles/Jet Skis, fan speed control motors for agricultural machinery, and snow blower chute motors.
Civil Intelligent Drive Motors: Includes motors for smart clothes-drying racks, automatic feeding systems, and garage door-opening system. All motors are characterized by high stability, strong adaptability, and exceptional durability.
Why Global Leaders Choose Us
Elite Technical Expertise: Our success is driven by a highly skilled team of specialized professionals and a stable, coordinated workforce. We combine years of engineering experience with a well-organized workflow management system to deliver excellence at scale.
Precision Manufacturing & R&D: Operating from ISO-certified facilities, we provide customized R&D and precision manufacturing. Our state-of-the-art testing center utilizes the latest performance instruments to ensure every component exceeds industry benchmarks.
A Proven OE Supplier: We are a trusted OE quality supplier to renowned American and European brands. This pedigree guarantees that our aftermarket solutions for Freightliner, Kenworth, Mack, Peterbilt and International, Mercedes Benz, Iveco, Scania, Daf, Volvo, Renault, MAN trucks to meet the same exacting standards as original equipment.
