Sterling GP Case Study
Transforming Production with Robot Welding.
Background
Sterling GP is a leading trailer manufacturer based in the United Kingdom. Known for building high-quality transport solutions, the company specialises in trailers such as tippers, flatbeds, and beaver tails that serve industries including construction, agriculture, and heavy haulage.
As demand for their products continued to grow, Sterling GP looked for ways to enhance manufacturing efficiency while maintaining their reputation for strength and reliability. Ensuring consistent weld quality across complex trailer components was a key priority, along with reducing manual strain on their workforce.
Investing in robot welding offered a clear path forward, giving Sterling GP the ability to improve throughput, streamline production, and support long-term business growth.
Project Overview
Customer: Sterling GP
Product: Beaver tails
Country: Stokesley, United Kingdom
Installed: 2025
Industry: Trailer Manufacturing
Solution: U-4000 Robot Welding Cell
Featured Equipment: OTC FD-V25L Robot Arm, OTC Fd-19 Controller + Teach Pendant, OTC P502L Power Source + 500A Water Cooled Torch, OTC 1PC1000 Headstock + Tailstock Positioner, Autoa 2000mm Servo Controlled Floor Positioner, Autoa Digital Touch Sense, Autoa Tip Cleaner Station, Integrated Safety Componentry.
Finished beaver tail trailer manufactured by Sterling GP.
The Solution
For Sterling GP, the goal was to improve efficiency and consistency in the welding of beaver tail trailers. Autoa worked closely with their team to design and deliver a U-4000 robot welding cell that could meet these demands.
At the heart of the cell is an OTC Daihen B6L robot, supported by the FD19 controller and teach pendant to provide flexibility and ease of use. The system also incorporates an OTC Daihen P502L power source and a 1PC1000 positioner, giving the ability to handle large, heavy components with precision.
With integrated safety componentry, the cell provides both reliability and operator protection.
The result is a complete robot welding solution tailored to Sterling GP’s production needs, helping them achieve faster throughput, consistent quality, and reduced manual workload.
U-4000 robot welding cell handling a beaver tail frame.
Inside the U-4000 robot welding cell.
Integrated safety and controls on the U-4000 cell.
The Results
The introduction of the U-4000 cell has given Sterling GP a clear advantage in producing beaver tail trailers. Welds that previously required significant manual effort are now completed with speed and accuracy, allowing more units to be produced in less time.
The cell’s positioner makes it possible to handle large trailer sections with ease, ensuring access to every joint and maintaining uniform weld quality. This consistency has reduced bottlenecks in production and allowed Sterling GP to plan with greater confidence around lead times and delivery schedules.
By shifting demanding welding work onto the robot, Sterling GP has also been able to improve operator safety and reduce fatigue, while redeploying skilled welders to tasks where their expertise adds the most value.
The IMPACT ON Sterling gp’S BUSINESS
The addition of the U-4000 cell has strengthened Sterling GP’s approach to trailer manufacturing. By introducing robot welding into the production of beaver tails, the company has increased consistency and improved efficiency on the workshop floor.
The investment has also created new opportunities for the business to plan for future growth. With proven capacity to handle large components and maintain high weld quality, Sterling GP now has a platform that supports both productivity and workforce safety.
Close-up of the fume extraction torch fitted to the robot arm.
The U-4000 robot welding cell installed at Sterling GP.
Close-up of the beaver tail frame and jig inside the U-4000 robot welding cell.
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