FAST AMT Transmissions — Integrated 12 & 16-Speed

FAST

Specifications

Source: FAST official product pages (fast-gear.com integrated-AMT and 16-speed-AMT series). Controller and shift-calibration options are selected per vehicle program.

Product family	F12JZ**A integrated AMT and 16JZSD200 / 16JZSD240 AMT
F12JZ**A input torque	2000–2800 N·m, 12 speeds
16JZSD input torque	2000–2400 N·m, 16 speeds
Ratio spread (F12JZ**A)	17.095 : 1.000
Max input speed	2600 rpm
F12JZ**A size / weight	Length 927.87 mm, weight 310 kg
16JZSD length	984.48 mm
Typical application	Heavy long-haul tractors and automated commercial-vehicle drivelines

Key features

• The F12JZ**A packages the automated unit as one integrated transmission — gearbox, actuator and controller in a single assembly.
• Input torque from 2000 to 2800 N·m covers the heaviest Weichai diesel ratings, including the WP13 band.
• 16JZSD200/240 brings the 16-speed twin-countershaft platform to automated long-haul drivelines.
• Wide ratio spread (17.095–1.000 on the F12JZ**A) keeps the engine in its efficient low-speed torque band.
• Built on FAST's twin-countershaft manual platform — the mechanical core shares parts with the manual line.

Applications

AMT is specified where driver workload and route variation matter — long-distance fleets, gas-engine tractors and urban-duty commercial vehicles that want automated shifting without a full hydraulic automatic transmission.

Customization

Available on request: shift-calibration and drive-mode tuning, clutch and PTO matching to the chosen Weichai engine, dash-shifter and interface options, retarder-ready variants, and export documentation with after-sales support.

Product Description

The FAST AMT Transmissions — Integrated 12 & 16-Speed is a FAST (Fast Gear) transmission built for heavy commercial and off-highway applications. It delivers smooth gear shifts, high torque capacity and long service life in mining trucks, dumpers, concrete mixers and special-purpose vehicles.

SDHI exports this transmission as a standalone component or matched with Weichai engines and HanDe axles as a complete powertrain package for truck OEMs, mining fleets and conversion customers. We provide installation drawings, English technical manuals and global spare parts supply.

Why Choose FAST AMT Transmissions — Integrated 12 & 16-Speed

• High torque capacity for mining duty
• Synchronized / constant-mesh options
• Matched with Weichai + HanDe driveline
• Service and overhaul kits available
• Global parts and technical support