Weichai Mining Engines for Mining Equipment
Reliable Mining Diesel Engines for Heavy-Duty Mining Equipment
Weichai mining diesel engines are built for the long shifts, heavy loads and dust of open-cast and underground mines. The Weichai diesel engine range spans displacements from 2.3L to 17L and power from 49.312HP to 758.44HP, so mining operators can match an engine to equipment from loaders and excavators to wide-body dump trucks. These engines meet the latest emission standard required for off-highway vehicles and machinery, and they use an electronically controlled high-pressure common rail system for strong, efficient power. Beyond mining, the same Weichai diesel engine platform serves the wider off-road engine range, including bulldozers, cranes, rollers, graders, forklifts, aerial work platforms and sanitation equipment.
Weichai Engine Models for Mining Equipment
Choosing between Weichai engine models starts with the duty cycle: the load, altitude, climate and daily hours your mining equipment faces. The table compares the WP12 and WP9H; WP7 and WP4.6N specifications are on their product pages.
| Model | Displacement | Rated Power | Max Torque | Emission | Suited To |
|---|---|---|---|---|---|
| WP12 (WP12.460E62) |
11.54 L | 338 kW @ 1900 rpm | 2200 N·m @ 1000–1400 rpm | BS IV | Heavy-duty machinery; cold starts at −35°C; works up to 4,000 m |
| WP9H (310E62 / 336E62 / 350E62) | 8.8 L | 228–257 kW @ 1900 rpm | 1500–1700 N·m | BS IV | 30T–40T excavators, 25T–55T cranes; −35°C to 50°C; up to 4,700 m |
Why Choose Weichai Mining Engines?
Every engine mining operators choose has to prove itself in uptime, fuel consumption and service life. Weichai mining engines are built around four strengths:
1. Long service life: the WP12 and WP9H are rated for up to 30,000 hours.
2. Extreme-condition capability: the WP12 starts at –35°C and runs up to 4,000 m. The WP9H operates from –35°C to 50°C and up to 4,700 m.
3. Lower operating cost: the WP9H consumes under 190 g/kW·h of fuel, and the WP12’s individual cylinder heads simplify maintenance.
4. Cleaner combustion: high-pressure common rail, cooled exhaust gas recirculation, and DOC, DPF and SCR aftertreatment.
Engines for Mining Trucks, Excavators and Loaders
Engines for mining trucks must deliver strong low-speed torque, tolerate heat and dust, and remain emission compliant. The WP12 produces 2200 N·m between 1000 and 1400 rpm, which suits wide-body dump trucks and other haulage equipment. Weichai also supplies diesel and gas engines for on-road trucks, so fleets that run both mine haulage and highway transport can work with a single manufacturer.
For excavators, loaders and cranes, the WP9H delivers up to 1700 N·m of torque and suits 30T–40T excavators and 25T–55T cranes. Because these Weichai mining diesel engines share a platform with construction machinery engines and road machinery engines, contractors running rollers or graders alongside mine fleets can specify one engine family. The WP9H is also designed for agricultural machinery, making it a flexible choice for mixed fleets.
