Quality Assurance & Manufacturing Scale
With more than 20 years of instrumentation manufacturing experience, Exact Instrument operates a 15,000 m² production facility staffed by over 200 employees. We currently produce up to 6 million instruments annually, with projected annual capacity expected to reach 12 million units following the completion of the new production facility and additional manufacturing lines.
Our manufacturing operations are organized into six specialized production workshops, including general pressure gauges, liquid-filled pressure gauges, special pressure gauges, capsule pressure gauges, thermometers and thermo-manometers, and digital pressure gauges.
General pressure gauge workshop
Daily production capacity: 9,000 units
Supported by a skilled manufacturing team, this workshop specializes in the production of standard Bourdon tube pressure gauges. The production line is designed to support both large-volume orders and flexible small-batch customization projects.
Liquid-filled pressure gauge workshop
Daily production capacity: 8,000 units
The workshop employs a team of 40 personnel, including more than 10 experienced technical specialists. Equipped with two production lines, it focuses on manufacturing liquid-filled pressure gauges that deliver stable performance, vibration resistance, and reliable measurement accuracy.
Capsule pressure gauge workshop
Daily production capacity: 600 units
Staffed by a dedicated team of 10 employees, including core technicians with more than 10 years of industry experience, this workshop specializes in low-pressure measurement instruments. Professional leak testing and pressure holding equipment are used throughout production to ensure dependable product performance.
Special pressure gauge workshop
Daily production capacity: 2,000 units
With 30 employees and advanced manufacturing equipment, including laser welding machines, plasma welding machines, automated inspection equipment, and automatic accuracy testing systems, this workshop produces all-stainless-steel pressure gauges, differential pressure gauges, and process pressure gauges. The products are designed for high measurement accuracy and long service life.
Thermometer and thermo-manometer workshop
Daily production capacity: 1,000 units
This workshop is operated by a team of 10 technical specialists and features a temperature-controlled production environment. Equipped with high-precision temperature calibration baths and automatic argon arc welding equipment, it primarily manufactures bimetal thermometers and thermo-manometers. Product temperature ranges cover -40°C to 600°C.
Digital pressure gauge workshop
The workshop is supported by dedicated electronic engineers and software development specialists, with core R&D personnel possessing more than 10 years of experience. Production equipment includes intelligent controllers, aging test systems, and high- and low-temperature testing equipment. Main products include pressure transmitters, temperature transmitters, digital pressure gauges, and pressure switches.
Laboratory
The laboratory is equipped to perform fatigue testing, water hammer testing, high- and low-temperature testing, vibration testing, drop testing, salt spray testing, three-dimensional measurement inspection, and aging tests to verify product performance, reliability, and durability.
Material inspection
All incoming materials undergo quality inspection before entering production. Material composition, dimensions, appearance, and other critical specifications are checked to ensure compliance with internal standards and customer requirements. To further improve efficiency and inventory management, we are building a new intelligent warehouse system with a planned investment of RMB 6 million. The project will expand storage capacity to 15,000 locations and improve space utilization. The warehouse will operate through fully digitalized inventory management supported by ERP, WMS, and MES systems to ensure accurate material control. CTU and AGV robotic systems will automatically deliver materials to production workshops, increasing material distribution efficiency by up to three times.
Welding
We operate 29 welding machines, including laser welding machines, argon arc welding machines, plasma welding machines, as well as fully automatic and semi-automatic welding equipment.
Fully Automatic Welding Machine
Semi-Automatic Weld Sealing
Hydrogen Arc Welding
Laser Welding
Overpressure and fatigue testing
Every welded elastic element undergoes overpressure and fatigue testing before entering the next production stage. Each test cycle lasts approximately 30 minutes to verify durability and performance stability.
Bimetal thermometer manufacturing
Inspected and approved bimetallic strips are wound tightly into a helical coil and cut into semi-finished temperature sensing elements. Both ends of each element are cleaned before welding the base and drive shaft. The coils then undergo a controlled stress-relief heat treatment to eliminate internal mechanical stress and stabilize the thermal deformation characteristics. Following controlled cooling, each element passes high-and-low temperature pre-screening to reject unqualified elements before final assembly.
Gauge movement installation
Linkage riveting
Dial installation
Calibration
Pointer installation
Case assembly
Process connection assembly
Quality inspection
Bezel crimping
Liquid filling
Static pressure testing
