ABOUT US
A Pneumatic Actuator Factory That Takes Torque Testing Seriously
PNEUMACTUATOR builds rack and pinion, scotch yoke, spring return, double acting and linear pneumatic actuators in our own factory in Wenzhou, Zhejiang, China, and ships them factory-direct to valve distributors, automation integrators and process plants worldwide.
From Our Factory to Your Valve Line
Valve automation fails at the interface: mounting dimensions that do not line up, torque margins that are too thin and accessory pads that force extra brackets. We machine every actuator around ISO 5211 and NAMUR interfaces, so standard ball, butterfly and plug valves pair with our units without adapters, and every output torque rating is verified on a calibrated test bench rather than on a datasheet.
Today our factory produces AT, AW, SR, DA and LF series actuators spanning 8 Nm to 200,000+ Nm output torque for water treatment, oil & gas, chemical and power applications across global markets. Every unit passes a documented four-gate inspection before it leaves our facility, because an actuator that fails in the field stops a whole process line.
8–200,000 Nm
Output torque range
ISO 5211
Valve mounting standard
7–15 days
Standard lead time
EXPLORE OUR CAPABILITIES
Inside the Factory
Factory & Facility
CNC machining, assembly lines and a torque test bench under one roof — dedicated production for AT, AW, SR, DA and LF series actuators.
Learn More →✅Quality Control
Calibrated torque testing, air leak checks and cycle tests, with per-lot inspection reports shared on request.
Learn More →🔬Technology & Equipment
Rack and pinion geometry, scotch yoke torque profiles and NAMUR accessory integration — engineered and validated in-house.
Learn More →📜Certificates & Compliance
ISO 9001 quality management, CE documentation and ATEX / SIL options for hazardous-area service.
Learn More →⚙️Production Process
Incoming material QC → CNC machining → torque test & final inspection → documented shipment. Four gates, each one recorded.
Learn More →🚚Supply Chain Management
From casting and seal sourcing to consolidated export shipping — one point of contact for your whole order.
Learn More →Why Buy Factory-Direct from PNEUMACTUATOR?
Factory-Direct Pricing
No trading-company markup. Volume quotes and 7–15 day lead times for distributors and project buyers.
Own Factory & Quality Control
Machining, assembly and torque testing in our own facility, with documented inspection before every shipment.
OEM / ODM Support
Custom torque, spring sets, materials, mounting and private label for your product line.
Export Experience
An experienced team for global B2B buyers — documents, logistics and after-sales support.
R&D and Technology
Precision Rack & Pinion Mechanism
Twin piston racks drive a precision-machined pinion for balanced 90° torque output. Hard-anodized bodies and sealed bearings keep the mechanism stable through 1,000,000+ cycles of testing.
Scotch Yoke Torque Profile
The sliding yoke delivers its highest torque at the 0° and 90° end positions, where valve seating and unseating demand the most force, with lower air consumption per cycle on large DN200+ valves.
NAMUR & ISO 5211 Integration
Standardized mounting pads for solenoids, limit switches and positioners, plus ISO 5211 top and bottom interfaces. Accessories bolt on without brackets or adapters.
Custom Engineering (ODM)
For ODM partners we adjust torque curves, spring pre-load, stroke angles and body materials to match specific valves and markets — a level of control trading companies cannot offer.
Certificates & Compliance
ISO 9001 Quality Management
Our machining, assembly and inspection processes run under an ISO 9001-based quality system, with batch records kept for every production run and shipment.
CE & ATEX Documentation
CE documentation accompanies standard orders; ATEX and SIL versions are available for oil & gas and hazardous-area projects, with certificates provided per unit.
Material & Environmental Validation
Salt-spray and temperature testing on production batches. Standard units cover -20°C to +80°C, with extended ranges from -40°C to +150°C available on request.
Production Process
1
Incoming Material QC
Castings, aluminum profiles, seals and springs are verified against spec before entering the line — off-spec material is returned before it reaches machining.
2
CNC Machining & Assembly
Body, piston, rack and pinion parts are machined to tolerance, then assembled with measured fits and air-leak checks at each station.
3
Torque Test & Final Inspection
Every unit runs on a calibrated torque test bench — output torque, travel angle, air consumption and fail-safe action are recorded on the test sheet.
4
Documented Shipment
Test sheets, certificates and packing lists accompany every order. Four gates, each one recorded, from material receipt to shipment.
Supply Chain Management
Component Sourcing
Long-term relationships with casting, extrusion, seal and spring suppliers secure stable quality and allocation — even in tight raw-material markets.
Consolidated Shipping
Actuators, valve packages and accessories ship consolidated to your port or door — one point of contact, one shipment, less freight.
After-Sales Support
Spare parts, RMA service and torque re-verification are coordinated by a dedicated account team — email sales@pneumactuator.com and expect a reply within one business day.
Partner with an Actuator Factory, Not a Middleman
Request our catalog, torque charts and wholesale price list — replies within 24 hours.