HPT 300 cone crusher operating instructions

The HPT300 cone crusher is a high-performance crushing equipment widely used in mining, quarrying, and aggregate production. Designed with advanced hydraulic technology, high crushing efficiency, and automation control, the HPT300 delivers stable performance for medium and fine crushing of hard and abrasive materials such as granite, basalt, iron ore, and quartz stone.

To ensure safe operation, extended service life, and maximum productivity, operators should strictly follow the operating instructions below.

1. Pre-Start Checks

Before starting the HPT300 cone crusher, perform the following inspections:

✅ Mechanical & Hydraulic System

• Ensure all bolts, guards, and protective plates are properly installed

• Check hydraulic oil level and quality — no leaks allowed

• Inspect lubrication oil level and verify normal pump function

• Confirm discharge opening (CSS) settings

✅ Electrical System

• Verify control panel power supply

• Check sensor connections (oil pressure, temperature, vibration)

• Ensure emergency stop system works properly

✅ Feeding & Material Conditions

• Confirm feed material hardness, size, and moisture meet equipment limits

• Remove metal, wood, or other non-crushable objects

• Check feeder operation and ensure even feed supply

✅ Safety Precautions

• Operators must wear PPE: helmet, gloves, ear protection, and dust mask

• Keep unauthorized personnel away from the machine

• Ensure surrounding work area is clean and clear

2. Startup Procedures

Follow the correct startup sequence to protect components:

1. Start lubrication system

   • Check pressure & flow are normal

2. Start hydraulic station

   • Confirm system pressure is correct

3. Start crusher motor

   • Ensure it runs normally without load for 2–3 minutes

4. Start feeding system

   • Feed gradually — never start with a full chamber

Important: Do not feed oversized rocks or dump materials suddenly. Maintain smooth, continuous feeding.

3. Normal Operating Guidelines

To ensure stable crushing:

✅ Feeding Rules

• Maintain uniform feeding; avoid empty or overloaded operation

• Feed size ≤ 240 mm (depending on configuration)

• Material hardness should comply with design requirements

✅ Load & Capacity Control

• Monitor amperage and maintain rated load

• Avoid long-term low-load operation (reduces efficiency)

✅ Lubrication & Cooling

• Oil temperature range: 35-45°C

• Stop operation if temperature exceeds 60°C

• Maintain clean oil and replace per schedule

✅ Discharge Control

• Ensure discharge chute remains unblocked

• Adjust CSS gradually — do not change while heavily loaded

4. Shutdown Procedures

Follow the proper shutdown process:

1. Stop feeding system

2. Continue crusher operation until chamber is empty

3. Stop crusher motor

4. Stop hydraulic station

5. Stop lubrication system after 5 minutes of cooling operation

Never shut down with material remaining in the crushing chamber.

5. Routine Maintenance

Regular maintenance ensures long-term reliability:

🔧 Daily

• Check oil levels, pressure & temperature

• Inspect hydraulic hoses & seals

• Remove accumulated dust & debris

🛠 Weekly

• Inspect mantle & concave wear condition

• Tighten bolts and check frame integrity

• Test sensors & automation control system

⚙️ Periodic (500–1000 hours)

• Replace lubrication oil & filters

• Inspect bearings & drive belts

• Check main shaft & hydraulic cylinder condition

6. Common Operational Warnings

7. Safety Notes

• Never open inspection doors while machine operates

• Do not adjust CSS while under heavy load

• Use lifting tools designed by manufacturer when replacing liners

• Ensure power is locked out before maintenance

Conclusion

Proper operation and maintenance of the HPT300 cone crusher ensures stable performance, extended equipment life, reduced downtime, and improved product quality. Operators must follow safe workflows, routine inspection schedules, and correct engagement procedures to maximize crusher efficiency and protect equipment investment.