Welcome to Curtis Assemble & Test Ltd
At Curtis Assemble & Test (CAT), we specialise in designing, manufacturing, and commissioning bespoke automated testing and assembly systems. Whether you need high-pressure hydraulic and pneumatic testing, vision inspection systems, or custom automation solutions, we deliver systems that are built to perform, designed to last, and tailored to your needs.
With a heritage dating back to 1973 through our origins in Douglas Curtis Machine Tools, CAT was founded in 1998. With over 50 years of engineering excellence, we combine decades of experience with cutting-edge innovation to deliver turnkey solutions trusted by leading manufacturers worldwide.
Bespoke Test & Assembly
Machines
Custom-designed test and assembly machines built around your components and processes, from standalone rigs to fully automated production systems.
Cleaning
in Place (CIP)
Automated cleaning in place systems delivering repeatable, validated cleaning without component removal, supporting cleanliness and compliance.
Hydraulic & Pneumatic
Leak Testing
Accurate leak testing systems for hydraulic and pneumatic components, delivering reliable detection of internal and external leaks under controlled pressure conditions.
Hydraulic, Pneumatic Flow & Pressure Measurement
Flow and pressure measurement systems engineered for accurate performance verification across development, validation, and production testing.
Machine Frame
Design & Guarding
Bespoke aluminium machine frames and integrated guarding systems engineered for strength, operator safety, future expansion, and seamless integration into automated production environments.
Why Choose CAT?
- Turnkey provider — from initial design to full commissioning and support.
- Proven quality — trusted by leading manufacturers worldwide.
- 50 years of heritage — combining deep expertise with cutting-edge innovation.
- Bespoke engineering expertise — no “off-the-shelf” compromises.
- Problem-solving mindset — we often fix issues caused by cheaper, lower-quality alternatives.
- In-house expertise – design, build, and software all under one roof
Looking for a trusted partner for your next project?
Talk to our experts today and discover how CAT can deliver the bespoke automated testing and assembly solution your business needs.
Our Core Capabilities
- Hydraulic & Pneumatic Leak Testing - High-pressure testing up to 3000 bar (hydraulic) and 250 bar (pneumatic), with precision results and full data traceability.
- Subcontract Testing - Validate your components using our advanced in-house testing rigs for pressure, leakage, flow, and performance.
- Cleaning in Place (CIP) & High-Pressure Cleaning - Delivering precision component cleaning to meet the highest cleanliness standards.
- Vision Inspection Systems - Automated component inspection and code reading for quality control and regulatory compliance.
- Flow & Pressure Measurement - Measure flow ranges up to 500 l/min at pressures up to 3000 bar and temperatures up to 150°C.
- Automation & System Integration - From standalone rigs to fully integrated systems, we specialise in automation solutions tailored to your exact process needs.
- Repairing & Improving Existing Machines - We don’t just design from scratch — we can retrofit, upgrade, and improve existing systems to boost efficiency, reliability, and compliance.
Precision Lapping & Deburring Machines
Precision lapping and deburring machines engineered to achieve tight tolerances, controlled surface finishes, and repeatable component quality.
Subcontract
Testing
Independent subcontract testing services providing accurate, traceable performance data using calibrated equipment and controlled test environments.
System Integration Specialists
Bespoke system integration solutions combining automation, robotics, and control systems to deliver reliable, high-performance production environments.
Vision Inspection Systems
Automated vision inspection systems designed to verify quality, accuracy, and consistency through non-contact inspection and intelligent image analysis.
What Our Customers & Partners Say
CAT led us in the right direction to get the best results possible."
Clear and concise technical support was given when required."
“For almost a decade, Curtis Assemble & Test has supplied Perkins with first-class cleaning and flushing systems for our global engine assembly operations. They consistently deliver high-end, bespoke solutions built to the highest standards. Their professionalism, reliability, and expert guidance have helped us maintain exceptional levels of quality and customer satisfaction.”
Andy Hurdman
Senior Manufacturing Engineer,
Perkins Engines Co Ltd
“Solving our design problems with innovative solutions,
CAT led us in the right direction to get the best results possible.”
Richard Challis
Senior Engineer,
Crane Building Services & Utilities
“CAT followed a project plan and delivered on time.
Clear and concise technical support was given when required.”
Jim Holder
Engineer,
Delphi Diesel Systems
“We have been incredibly proud to supply metalwork to Curtis Assemble & Test for their bespoke automated testing and assembly systems. Their quality standards are exceptionally high, and their complete turnkey approach from design to commissioning ensures every project is delivered to the highest standard. They are a fantastic partner and their engineering expertise truly shows in the final product.”
Steve Wright
Managing Director,
Steve Wright Engineering
“For over two decades, we have supplied precision-made parts to Curtis Assemble & Test. Their bespoke automated testing and assembly systems are industry-leading because they manage everything in-house, offering complete turnkey solutions from design through to commissioning. Their quality standards are exceptional, making them a highly trusted engineering partner.”
Paul Cartlidge
Managing Director,
R. Bullock Precision Engineering Ltd
Trusted by Manufacturers Worldwide
Curtis Assemble & Test Ltd designs and builds bespoke testing, measurement, assembly, and automation systems for manufacturers across the globe.
Our equipment is installed throughout the UK, Europe, North America, South America, Asia, and the Middle East, supporting customers operating in highly regulated and demanding production environments.
With over 50 years of engineering experience and a heritage dating back to 1973, CAT combines proven engineering expertise with innovative automation solutions to help manufacturers improve quality, efficiency, and reliability.
From hydraulic and pneumatic testing systems to vision inspection technology and fully integrated automation solutions, every project is engineered to deliver long-term performance and dependable results.
Worldwide Installations
Systems operating across Europe, North America, South America, Asia, and the Middle East.
50+ Years of Engineering Experience
Combining decades of expertise with innovative automation and testing technology.
Bespoke Engineering Solutions
Every system designed around your product, process, and production requirements.
Trusted Manufacturing Partner
Supporting global manufacturers with installation, commissioning, and ongoing technical support.
Proven
Reliability
Engineered for accuracy, repeatability, compliance, and long-term performance.