The king of value for money
SAG Automation
Precision Transmission & Motion Control Components
Engineering-Grade Precision
Every component manufactured to DIN and ISO standards — ground surfaces,
hardened tooth profiles.
Factory-Direct Global Supply
Source directly from our vertically integrated production facilities in China.
Serving clients around the globe
Projects
Countries
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Why Choose Us
Vertically Integrated Manufacturing
From raw material forging to finished product inspection —
every process is completed in-house at our own facilities
in Hangzhou, China. No subcontracting, no middlemen,
full traceability at every production stage.
Engineering-Grade Precision
All components machined to DIN, ISO, and JIS international
standards. Critical mating surfaces ground to Ra ≤ 0.4μm,
with material certificates and dimensional inspection
reports available on every order.
Custom OEM Solutions
Non-standard specifications, private label packaging, and
drawing-based manufacturing accepted. Dedicated application
engineers handle technical selection, CAD confirmation,
and sample validation from start to finish.
Reliable Global Logistics
Established freight partnerships for door-to-door delivery
to Europe, North America, Australia, and Southeast Asia.
Standard lead time 7–15 days ex-works Hangzhou;
custom specifications subject to drawing confirmation.
Trusted Across Six Industrial Sectors
From CNC machining centres to agricultural equipment — SAG Automation transmission components power industrial operations in 80+ countries worldwide.
01
CNC Machine Tools & Machining Centres
Precision gear racks, ground ball screws, linear guideways and low-backlash planetary gearboxes — engineered for the positioning accuracy and dynamic load demands of modern CNC turning, milling, and grinding centres.
- Gear Rack & Pinion
- Ball Screw Assembly
- Linear Guideway
- Planetary Gearbox
02
Industrial Robotics & Automation
Zero-backlash harmonic drives, precision planetary gearboxes, slewing drives and flexible jaw couplings — matched for servo motor integration in robotic joints, collaborative arms, and high-speed pick-and-place systems.
- Harmonic Drive
- Precision Planetary
- Slewing Drive
- Jaw Coupling
03
Agricultural Machinery
Heavy-duty PTO drive shafts with integrated torque limiters, agricultural gearboxes, roller chains, sprockets, and hydraulic cylinders — built to withstand the shock loading and environmental exposure of field machinery operation.
- PTO Drive Shaft
- Agricultural Gearbox
- Roller Chain
- Hydraulic Cylinder
04
Conveyor & Material Handling
Standard and heavy-duty roller chains, stainless steel conveyor chains, matched sprockets, worm gear reducers and helical gearboxes — providing reliable continuous-duty power transmission across automated conveyor, packaging, and sorting lines.
- Conveyor Chain
- Taper Lock Sprocket
- Worm Gearbox
- Helical Reducer
05
Construction & Heavy Equipment
Custom hydraulic cylinders for excavators, forklifts, tunnel boring, and offshore machinery — alongside heavy-duty planetary drives, gear rack slewing systems, and high-tensile transmission chains rated for extreme load cycles.
- Hydraulic Cylinder
- Planetary Drive
- Heavy-Duty Chain
- Slewing Bearing
06
Solar Tracking Systems
Weatherproof slewing drives, worm gearboxes, screw jacks and rotary actuators — precision-rated for single-axis and dual-axis solar tracker applications, delivering consistent angular positioning across decades of outdoor service life.
- Slewing Drive
- Worm Gearbox
- Screw Jack
- Rotary Actuator
Industrial Transmission Components for Sale
Precision-engineered gearboxes, gear racks, chains, drive shafts, hydraulic cylinders and motion control hardware — supplied direct to buyers in 80+ countries.
01
Speed Reducers
Gearboxes & Reducers for Sale
Planetary, worm, helical, cycloidal gearboxes — servo-grade low-backlash to heavy-duty industrial, DIN/ISO rated, IEC flange compatible.
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02
Gears & Racks
Gear Racks & Precision Gears for Sale
Hardened gear racks M1–M32, spur, bevel, miter, helical, worm gears ground to DIN 6–9 accuracy for CNC and automation systems.
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03
Chains & Sprockets
Roller Chains & Sprockets for Sale
Standard roller chains, stainless conveyor chains, agricultural chains with matched taper lock and QD sprockets for global conveyor applications.
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04
Shafts & Couplings
PTO Shafts & Couplings for Sale
Agricultural and industrial PTO shafts with torque limiters, SWC/SWP universal joints, jaw, gear, and fluid couplings — full drivetrain range.
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05
Hydraulic & Linear
Hydraulic Cylinders & Linear Motion for Sale
Custom hydraulic cylinders for construction, forklift, offshore — paired with ball screws, linear guideways, screw jacks and slewing drives.
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06
Components & Hardware
Transmission Components & Hardware for Sale
Shaft collars, locking assemblies, taper lock bushings, slewing bearings, timing pulleys, V-belt sheaves — complete OEM hardware catalogue.
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Since 2004
Years in Business
Clients
staff
From our ISO 9001 certified facilities in Hangzhou, China,
we supply factory-direct to OEM builders, machine integrators,
and industrial buyers across Europe, North America, Australia,
and Southeast Asia — with engineering support, custom OEM
solutions, and reliable global logistics as standard.