NORDVIK Hydraulic & Lubrication Unit

• Rapid response protection — Hydraulic pressure builds and releases instantly, protecting the crusher during tramp and overload events.
• Millimetre-precise control — Sensors and proportional valves give closed-loop discharge setting control down to the millimetre.
• Push-button operation — Setting adjustment and chamber clearing are done from the panel or touch screen — no manual work.
• Compact integration — All hydraulic and lubrication components integrated in one space-saving power pack, easy to install and service.
• Full condition monitoring — Temperature, pressure, flow and oil cleanliness are monitored continuously with alarms and interlocks.
• Automation foundation — Hydraulics plus electrical control form the basis for automated, intelligent crusher operation with the NORDVIK ACS.

All brand names, model names, photos and marks mentioned are owned by their respective manufacturers. Luoyang Songju Industrial Equipment Co., Ltd. has no affiliation with the original equipment manufacturers. These terms are used for identification purposes only and do not indicate affiliation with or approval by the OEM.

A crusher hydraulic system uses hydraulic fluid to transmit power and control signals: it adjusts the discharge setting by raising or lowering the mainshaft or rotating the adjustment ring, provides overload and tramp protection by releasing pressure instantly, clears a packed chamber by stroking the shaft, and locks the setting against vibration. The lubrication system circulates filtered, cooled oil through bearings, gears and eccentric bushings, forming an oil film that reduces wear, removes heat and flushes away debris.

• Discharge setting adjustment — Hydraulic cylinders raise/lower the mainshaft or rotate the adjustment ring — precise, fast, and possible under load on supported models.
• Overload & tramp protection — On tramp iron or overload the system releases pressure instantly, lets the object pass, then resets automatically.
• Chamber clearing — After a stopped-with-load event, the shaft or adjustment ring strokes up and down to discharge packed material — minutes instead of hours.
• Locking function — Hydraulic locking cylinders secure the setting ring or mainshaft against vibration, holding a stable discharge setting.
• Automatic release — During a tramp event the system relieves pressure automatically, protecting frame and internals from damage.

• Hydraulic power pack — Pump (gear or piston), motor, tank, level gauge, thermometer and air breather — the system's power source.
• Control valve group — Solenoid directional, relief, check, throttle and proportional valves controlling direction, pressure and flow.
• Hydraulic cylinders — Setting, locking and clearing cylinders; single- and double-acting designs by function.
• Accumulator — Bladder or piston type — absorbs shocks, maintains pressure and compensates leakage.
• Piping & fittings — High-pressure hoses and steel pipe rated above the system's maximum pressure.
• Hydraulic fluid — Anti-wear grade fluid that transmits power and also lubricates, cools and protects against rust.
• Sensors & controllers — Pressure, displacement and temperature sensors with PLC and touch screen for closed-loop control.

The lubrication system is the crusher's blood circulation: it forms an oil film on every friction surface, reducing wear, carrying away heat, flushing out wear debris and preventing rust — its condition directly determines equipment life.

• Forced-circulation oil lubrication — Gear or screw pumps deliver ample flow with good heat dissipation; duty + standby pump configuration for reliability.
• Spray lubrication — Compressed-air oil mist for high-speed gears and bearings.
• Manual grease lubrication — Grease gun or hand pump for low-speed, intermittent points.
• Automatic grease lubrication — Electric pump, distributors and controller for timed, metered greasing.
• Tank with level gauge, thermometer, heater and air breather
• Oil pumps in duty + standby configuration
• Air or water cooler for oil temperature control
• Suction, return and high-pressure filters with clogging indicators
• Valve group, piping and flow distributors
• Pressure, temperature, flow and level instruments
• Control panel interlocked with the crusher main control