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Bespoke Test & Assembly Machines

Custom-engineered products for component validation,
leak detection, and automation.

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Bespoke Test & Assembly Machines

Curtis Assemble & Test Ltd designs and manufactures a complete range of bespoke test, measurement, and automation systems. Every solution is engineered for precision and performance, built to exact customer specification, and proven for accuracy, repeatability, and compliance with international quality and manufacturing standards across automotive, aerospace, and industrial sectors.

Explore Our PRODUCTS

Explore our range of bespoke test and automation machinery below. Use the links to jump directly to the product category that matches your project needs — from leak testing and flow measurement to fully automated assembly systems.

Leak & Pressure
Testing Systems
Flow & Measurement
Equipment
Assembly & Automation
Rigs
Special Purpose
Machines

Leak & Pressure Testing Systems

CAT’s leak and pressure testing machines provide accurate, repeatable measurement for hydraulic, pneumatic, and fuel system components. From compact manual benches to fully automated rigs, each solution is engineered for precision and durability in demanding production environments.

Double back leak test machine used for precision component leak detection

Double Back Leak Test Machine

Dual-station rig for simultaneous precision leak detection and pressure validation.

Twin headed back leak testing system for simultaneous component leak detection

Twin Headed Back Leak

Compact system enabling parallel back-leak measurement for multi-component testing.

HPF300 high pressure test rig used for component validation

HPF300
Pressure Rig

High-pressure hydraulic test unit rated up to 3000 bar for performance and endurance testing.

Wet seat leak test machine used for valve and component sealing verification

Wet Seat Test Machine

Detects valve or seat leakage using advanced pressure-decay evaluation.

High pressure nozzle test bench for injector and fuel system validation

High Pressure Nozzle Test Bench

Diesel-injector nozzle test bench providing accurate flow and pressure readings.

F2 OMV back leak testing system for valve component validation

F2 OMV & Back Leak Machine

Combined system for back-leak and wet-seat testing of injector assemblies.

Nitrogen nozzle test rig used for gas flow and leak testing

Nitrogen Nozzle
Test Rig

Gas-based test rig for non-contaminating pressure and flow analysis.

F2 insulation resistance test rig for electrical component testing

F2 Insulation Resistance Rig

Measures electrical and sealing integrity under simulated operating pressures.

Patch test cabinet used for leak detection and seal verification

Patch Test
Cabinet

Self-contained cleanliness and fluid-contamination testing station.

Gas valve test bench used for pressure and leak validation

Gas Valve
Test Bench

Automated gas-valve pressure and leakage verification system.

Pneumatic pass-off rig used for final production testing

Pneumatic
Pass-Off Rig

Air-pressure bench for component leak and functionality checks.

Hydraulic power pack used for pressure generation in test systems

Hydraulic
Power Packs

Compact power units providing controlled hydraulic supply for test benches.

Nozzle opening pressure and atomisation test machine

NOP / Atomisation Test Machine

High-precision system for evaluating injector spray pattern and atomisation performance under controlled pressure conditions.

Manual injector test bench for injector calibration and validation

Manual Injector Test Bench

Operator-controlled hydraulic test bench for injector flow, leak, and pressure validation in development or repair environments.

Need the right pressure-testing setup for your components?

Our experts will help you specify the perfect system for your process and standards.

Get Expert Guidance

Flow & Measurement Equipment

Our flow and measurement systems evaluate the performance of pumps, valves, and fluid systems with exceptional accuracy. Designed for development, validation, and quality control, these rigs ensure every component meets your flow-rate and pressure specifications.

Mass overcheck unit used for precise flow measurement verification

Mass Overcheck
Unit

Calibrates and verifies mass-flow performance across multiple test ranges.

Large flow development rig used for high volume flow testing

Large Flow Development Rig

High-capacity platform for developing and validating fluid-flow systems.

Flow test machine used for liquid and air flow measurement

Flow Test
Machine

Precision flow-measurement bench for liquid or gas components.

High temperature pump test machine used for pump validation

High Temp
Pump Test Machine

Evaluates pump performance under elevated temperature and pressure conditions.

Pump head testing machine used for pump component validation

Pump Head
Test Machine

Measures pressure, flow, and sealing performance of pump heads.

Multi-purpose rig used for component testing and validation

Multi-Purpose
Rig

Versatile test platform configurable for flow, pressure, or leak validation.

NCV pressure test machine used for component pressure validation

NCV Pressure Test Machine

Automated rig for non-contact valve pressure and flow assessment.

Automated parts counter used in production testing environments

Parts
Counter

Automated counting and inspection system for small precision components.

From flow testing to full automation — we build systems around your process.

Talk to our engineers about developing a solution tailored to your production needs.

Talk to Our Engineers
FAQs

Assembly & Automation Rigs

CAT designs and builds bespoke assembly and automation rigs for complete process integration. Whether joining, pressing, or calibrating precision parts, our systems enhance efficiency, consistency, and quality across complex manufacturing operations.

Automated injector assembly line for precision component assembly

Injector Assembly Lines

Semi-automated lines for precision diesel-injector assembly and calibration..

Armature press used for precision component assembly

Armature Press

Automated press system for controlled armature or core insertion processes.

Control valve test machine used for valve performance validation

Control Valve Test Machine

Tests hydraulic and pneumatic control valves for performance and sealing accuracy.

Torque test bench used for precision torque measurement

Torque Bench

Verifies torque settings and rotational force during assembly operations.

Shim selection bench used for precision component adjustment

Shim Selection Bench

Automated shim measurement and selection station ensuring dimensional accuracy.

Nozzle capnut check bench used for component inspection

Nozzle / Capnut Check Bench

Combined assembly and verification bench for nozzle-capnut torque checks.

Nozzle setting machine used for injector calibration

Nozzle Setting Machine

Calibrates injector nozzles to precise pressure and lift settings.

2 piece wiper seal assembly machine

2-Piece Wiper Seal Machine

Automated assembly press for high-accuracy wiper-seal fitting.

electric motor test rig used for motor performance validation

E-Motor Rig

Automated test and validation bench for electric-motor assemblies.

Special Purpose Machines

Many projects demand tailor-made solutions. CAT’s special-purpose machines combine innovation and flexibility to solve unique engineering challenges — from optical inspection and marking systems to automated air-gap, electrical, and cleanliness testing.

Final air gap machine for measuring and adjusting electrical air gap tolerances in precision components

Final Air Gap Machine

Measures and adjusts electrical air-gap tolerances in precision components.

Manual nozzle test bench used for injector and nozzle performance testing

Manual Nozzle
Test Bench

Operator-controlled bench for individual nozzle pressure testing.

Electrical clearance test machine used for insulation and safety validation

Electrical Clearance
Test Machine

Validates insulation and spacing in electrical assemblies.

Multi-test automated machines combine multiple testing processes within a single automated system to increase efficiency, consistency, and production throughput.

Laser
Marker

Automated laser-engraving system for permanent part identification.

PTR 250 testing rig used for specialised component validation

PTR 250 Rig

Pneumatic regulator-setting machine operating up to 250 bar.

TEAT inspection machine used for automated component inspection and validation

Teat
Inspection Machine

Optical inspection system for moulded or rubber components.

Multi test automated machine used for integrated component testing processes

Multi-Test Automated Machine

Fully automated bench configurable for multiple functional tests.

wash-module-inline-component-cleaning-system.jpg

Wash
Module

In-line washing unit for component cleaning and contamination removal.

Real-World Performance, Real-World Trust

"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 Engineering supplier logo - trusted engineering partner to Curtis Assemble and Test
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."
R Bullock Precision Engineering supplier logo - trusted engineering partner to Curtis Assemble and Test
Paul Cartlidge Managing Director, R. Bullock Precision Engineering Ltd
"Solving our design problems with innovative solutions, CAT lead us in the right direction to get the best results possible."
Crane Building Services and Utilities logo
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.
"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. Our partnership with Curtis has helped us maintain exceptional levels of quality and customer satisfaction. Their team is reliable, professional, and their expert guidance has been invaluable over the years."
Perkins Engines logo – client testimonial for Curtis Assemble & Test cleaning and flushing systems
Andy Hurdman Senior Manufacturing Engineer,   Perkins Engines Co Ltd

Engineering & Technical FAQs

What types of bespoke machines do you design and manufacture?

We build custom test, measurement, and automation systems, including leak testing rigs, flow measurement equipment, assembly machines, and special purpose machines.

Yes, we engineer equipment like High Pressure Nozzle Test Benches, Double Back Leak Test Machines, and Injector Assembly Lines for precision diesel injector calibration.

We design bespoke assembly rigs, such as armature presses and 2-piece wiper seal machines, which integrate joining, pressing, and calibration.

Yes, we supply high-pressure hydraulic test units, such as the HPF300 Pressure Rig, which is rated up to 3000 bar for performance and endurance testing.

Absolutely, we combine innovation to solve unique challenges, delivering systems for optical inspection, laser marking, and automated electrical clearance testing.s.

From leak testing to full automation — CAT builds precision-engineered systems trusted worldwide.

Whatever your testing or assembly requirements, our team can design a bespoke solution that delivers performance, reliability, and results.

Start Your Project with CAT