Mining and Extraction Equipment
Built Strong: Hydraulic Cylinders for Mining Equipment
In mining applications, advanced extraction equipment achieves peak performance and operational efficiency through heavy-duty automation and precision control. Our hydraulic cylinders are ideal for a wide range of mining machinery such as rock breakers, drilling rigs, crushers, excavators, loaders, haul trucks, and underground bolters. Furthermore, Toleng Hydraulics provides dedicated hydraulic solutions for specialized mining vehicles including **Mining Trucks**, **Mining Hydraulic Cable Towing Vehicles**, **Tunnel Repair Machines**, and **Tunnel Drilling Rigs**, all of which demand exceptional durability and reliability in confined or rugged underground environments. Toleng Hydraulics supplies hydraulic cylinders and rotary joints for mining infrastructure and material handling systems, currently capable of supporting equipment used in large-scale mining operations to withstand the extreme conditions encountered during mineral extraction and transport.
Application Example: A fleet of six heavy-duty mining trucks, supported by a dedicated tunnel repair machine, operates in a deep underground nickel mine in Northern Canada, transporting over 12 million tons of ore annually through steep decline tunnels. These mining trucks are engineered for extreme hauling capacity and feature robust hydraulic suspension and dumping systems. Hydraulic cylinders control the dumping angle and act as suspension dampers, maintaining vehicle stability on gradients exceeding 15% under full load. The tunnel repair machine continuously maintains the haul road, using its hydraulic boom and work platform to scale loose rock from tunnel walls and ceilings. Throughout the harsh Arctic mining conditions, these cylinders withstand temperature extremes from -40°C to abrasive wear, ensuring the trucks complete up to 30 haul cycles per day while the repair machine performs scaling operations at heights of up to 12 meters, maintaining safe passage for the entire operation.
- High-strength lift and tilt cylinders for mining trucks, engineered to withstand heavy payloads and continuous operation in extreme off-road conditions
- Custom hydraulic towing cylinders for mining hydraulic cable towing vehicles, providing precise control and reliable force for cable handling and vehicle recovery
- Durable telescopic and positioning cylinders for tunnel repair machines, enabling accurate boom movement and stable support during overhead maintenance tasks
- Heavy-duty feed and thrust cylinders for tunnel drilling rigs, designed to deliver consistent drilling force and smooth operation in hard rock environments
- Stabilizer and steering cylinders for underground and surface mining equipment, ensuring safe maneuverability and enhanced machine stability on uneven terrain
- Protective cylinder coatings and sealing solutions tailored for mining applications, offering resistance to abrasion, corrosion, and extreme temperatures for extended service life
References + Applications
Powerful Lifting & Durable Performance – Hydraulic Cylinders for Mining Trucks
Mining trucks must perform reliably under some of the most extreme conditions on Earth: abrasive dust, continuous vibration, high-impact loads, and steep haul roads. During a large-scale mining operation at an open-pit copper mine, a fleet of 100-ton and 200-ton mining trucks was deployed. These vehicles operated 24/7, hauling thousands of tons of ore and waste material daily. Toleng Hydraulics provided a variety of custom-designed cylinders for these mining trucks, including hoist cylinders, suspension cylinders, steering cylinders, and telescopic cylinders.
Hoist Cylinder (Mining Truck Dump Body):
Piston Diameter: 180 mm
Piston Rod Diameter: 120 mm
Stroke: 2,200 mm
Working Pressure: 25 MPa
Function: Lifts the dump body to unload ore and overburden efficiently at the dump site.
Suspension Cylinder (Rear Axle):
Piston Diameter: 160 mm
Piston Rod Diameter: 100 mm
Stroke: 400 mm
Working Pressure: 24 MPa
Function: Absorbs shock loads and provides stability during hauling over rough terrain.
Steering Cylinder (Front Axle):
Piston Diameter: 140 mm
Piston Rod Diameter: 90 mm
Stroke: 550 mm
Working Pressure: 22 MPa
Function: Ensures precise and responsive steering control for heavy mining trucks on narrow haul roads.
Telescopic Cylinder (Tailgate Opener):
Piston Diameter: 100 mm (first stage)
Stroke: 1,200 mm (two stages)
Working Pressure: 21 MPa
Function: Controls the tailgate opening for controlled dumping of material.
Technical Highlights:
250 mm – The large-bore suspension cylinders on heavy mining trucks are designed to handle extreme shock loads during loading and hauling. Operating at up to 25 MPa, they generate damping forces exceeding 300 kN, ensuring vehicle stability and operator comfort even on rough haul roads.
All cylinders feature heavy-duty sealing systems designed to withstand extreme abrasion from dust, mud, and rock debris, while maintaining stable performance in temperatures ranging from -40°C to +100°C.
Integrated magnetostrictive displacement sensors provide real-time position feedback with ±0.5 mm accuracy, enabling precise automated control for applications such as dump body angle monitoring and suspension leveling.
Hydraulic Cylinders for Tunnel Repair Machines
This tunnel repair machine belongs to the specialized underground maintenance and rehabilitation equipment category.
Toleng supplies the hydraulic components and cylinders for this machine, enabling precise boom positioning and stable repair platform control. The hydraulic cylinders ensure smooth operation and powerful lifting force in confined tunnel spaces, thereby improving maintenance efficiency and reducing downtime.
Technical Specifications:
Maximum Operating Speed: 15 km/h
Engine Power: 200 HP
Operating Weight: 18 tons
Hydraulic Cylinders are manufactured by Toleng Hydraulics.
| Cylinder Type | Piston Diameter | Stroke | Working Pressure |
|---|---|---|---|
| Boom Lift Cylinder | 130 mm | 1,200 mm | 220 bar |
| Platform Tilt Cylinder | 90 mm | 500 mm | 190 bar |
| Stabilizer Cylinder | 110 mm | 700 mm | 210 bar |
| Telescopic Arm Cylinder | 100 mm (stage 1) | 2,500 mm | 230 bar |
Technical Highlights:
The boom lift cylinders are designed to handle heavy repair loads at extended reach, operating at up to 220 bar to provide stable lifting force for overhead tunnel maintenance tasks.
All cylinders feature compact designs tailored for space-constrained tunnel environments, while maintaining high durability against dust, moisture, and vibration.
Integrated position sensors enable precise boom and platform control, allowing operators to perform repair work with accuracy and safety in low-visibility conditions.
Some of our Applications
- Mining Truck
- Mining Hydraulic Cable Towing Vehicle
- Tunnel Repair Machine
- Tunnel Drilling Rig