X(S)N-110L Energy-Saving Rubber Internal Mixer
Advanced rubber mixing equipment designed for labor savings, low failure rates, and uninterrupted operation in industrial applications.
Frequently Asked Questions
Model Selection
What standard volume models do you have? How to select proper model?
Standard volumes: 10L, 35L, 55L, 75L, 110L, 150L, 200L. Batch charging weight is 70%-85% of chamber volume.
- 10L/35L for lab testing & small batches
- 55L/75L for medium rubber factories
- 110L-200L for tire, conveyor belt & mass compound production
Drop type vs tilting type mixer?
Drop type: Bottom discharge door, connects with two roll mill for continuous auto line, high output.
Tilting type: Whole chamber tilts to unload, low cost, easy formula switching for small workshops.
Pressurized ram vs non-pressurized mixer?
Pressurized ram: Provides strong compression & shear, excellent carbon black dispersion, shorter mixing cycle.
Non-pressurized: Only for silicone & low-filler light color rubber, lower efficiency.
Rotor & Mixing Process
Types of rotor and application?
- Two-wing rotor: General purpose for NR, NBR, EPDM, cost-effective
- Four-wing high efficiency rotor: Stronger shear, ideal for high carbon black & reclaimed rubber, 20% higher mixing efficiency
- Stainless steel rotor: For silicone & color rubber, no contamination, easy cleaning
Normal mixing temperature range for different rubber?
| Rubber Type |
Temperature Range |
| NR/NBR |
95-120℃ |
| EPDM |
110-135℃ |
| Silicone |
80-110℃ |
| Reclaimed rubber |
130-150℃ |
Circulating cooling water controls temperature to avoid scorch.
White speckles & poor filler dispersion?
Insufficient ram pressure, worn rotor with big gap, wrong feeding sequence, short mixing time, blocked cooling water.
Rubber scorch during mixing?
Lower cooling water temperature, reduce batch weight, shorten high-temperature mixing time, slow rotor speed, clean blocked cooling circuit.
Hydraulic & Pneumatic Failure
Ram lifts slowly & low pressure?
Low or dirty hydraulic oil, worn oil pump, faulty relief valve, leaking cylinder oil seal, insufficient air pressure for pneumatic model.
Discharge door can't seal tightly & leak compound?
Worn wear plate on door, insufficient lock cylinder pressure, rubber residue stuck on discharge opening, offset limit switch.
Heavy vibration & abnormal noise?
Damaged bearing, unbalanced rotor clearance, loose anchor bolt, broken reducer gear, sudden heavy load from rubber block.
Automatic Control
Functions of PLC automatic mixer?
Stores dozens of mixing recipes, automatically controls feeding, ram pressure, rotor speed, temperature & mixing time. Real-time data curve recording for quality traceability.
Can match full automatic mixing line?
Yes, matches auto weighing system, carbon black conveying, batch feeder, two roll mill, cooling line & rubber cutter for full auto compounding line.
Maintenance & Wearing Parts
Wearing parts & replacement cycle?
Rotor wear tiles, discharge door seal plate, ram oil seals, hydraulic seals, bearings, sealing rings.
- Replace every 6-12 months under 24h continuous operation
- 12-18 months for intermittent production
Daily maintenance checklist?
Clean carbon & rubber residue inside mixing chamber, check cooling water leakage, lubricate bearings & reducer, monitor hydraulic oil level, clean dust removal device.
Gearbox oil change cycle?
Every 6 months for continuous production; 12 months for intermittent use, filter tank impurities while changing oil.
Customization & After-sales
Customized options available?
Stainless steel anti-corrosion mixer, explosion-proof motor, enhanced cooling system, high-pressure ram, closed auto powder conveying, lab small internal mixer.
Warranty & delivery time?
1-year whole machine warranty (excluding wear parts: wear tiles, oil seals).
- Standard models: 3-10 days delivery
- Large customized production line: 20-40 days
On-site installation, commissioning & operator training available.
