Injection Molding Machine Oil is a high-performance hydraulic oil specially developed for the working characteristics of injection molding machine hydraulic systems, providing comprehensive protection for the precision components of injection molding machines during high-intensity production.
Key Features
- Excellent anti-wear and anti-scuffing performance, protecting hydraulic pumps, valves and cylinders
- Outstanding viscosity-temperature stability, ensuring stable system pressure and precise control
- Good anti-oxidation and anti-aging performance, extending oil service life
- Superior anti-foaming and air release properties, avoiding hydraulic shock and cavitation
- Excellent water separation and anti-rust performance, protecting the hydraulic system from corrosion
- Compatible with various sealing materials, no swelling or hardening of seals
- Suitable for continuous high-load operation of injection molding machines of various tonnages
Typical Grades
ISO VG 32# / 46# / 68# / 100# (46# and 68# are mainstream general grades)
Product Specifications
| Item | Unit | Typical Value(46#) |
| Kinematic Viscosity @ 40℃ | mm²/s | 41.4 ~ 50.6 |
| Kinematic Viscosity @ 100℃ | mm²/s | 8.0 ~ 9.6 |
| Viscosity Index (VI) | — | ≥ 95 |
| Pour Point | ℃ | ≤ -9 |
| Flash Point (COC) | ℃ | ≥ 210 |
| Freezing Point | ℃ | ≤ -12 |
| Water Content | % | ≤ 0.03 |
| Mechanical Impurities | % | ≤ 0.01 |
| Density @ 20℃ | kg/m³ | 870 ~ 890 |
| Foam Characteristics | mL/mL | ≤ 100/≤ 50/≤ 100 |
| Anti-wear Performance (Four-ball tester) | mm | ≤ 0.40 (392N, 60min) |
| Oxidation Stability (RBOT) | min | ≥ 800 |
| Rust Prevention | — | Pass GB/T 11143 |
| Demulsibility | min | ≤ 30 (40-37-3mL, 54℃) |
| Seal Compatibility | — | Good |
| Viscosity Grade | Description | |
| ISO VG 32# | Low viscosity, for small high-speed injection molding machines, good low-temperature start-up, fast hydraulic response | |
| ISO VG 46# | Mainstream general grade, for medium and large conventional injection molding machines, balancing lubrication and transmission, wide application conditions | |
| ISO VG 68# | Medium-high viscosity, for large tonnage, high-pressure injection molding machines, strong anti-wear load capacity, good sealing performance | |
| ISO VG 100# | High viscosity, for extra-large heavy-duty injection molding machines, good viscosity retention under high temperature and heavy load conditions | |
Specially designed for hydraulic systems of injection molding machines, suitable for horizontal, vertical and all-electric plastic injection molding equipment of various tonnages, also applicable to hydraulic systems of rubber and plastic machinery such as plastic extruders and blow molding machines, providing stable hydraulic transmission and reliable component lubrication protection under high pressure, high speed and long-term continuous operation conditions.
Product Specifications
- Small: 18L/barrel
- Large: 200L/barrel, 1000L/IBC ton barrel
- Customizable: LOGO and product information (MOQ negotiable)





