Dry screw pump
The SP Series Dry Variable Pitch Screw Vacuum Pump is a completely oil-free dry vacuum product developed by our company through the introduction of advanced screw manufacturing technology from Japan. It is widely used in industries such as petrochemicals, chemicals, pharmaceuticals, lithium batteries, photovoltaics, and semiconductors.
productAdvantages：
- Outstanding Ultimate Vacuum Level**: Single-pump ultimate vacuum level reaches up to 1 Pa.
- Wide Pumping Speed Range**: Single-pump speed ranges from 180 m³/h to 2700 m³/h.
- Advanced Variable-Pitch Screw Design**: Reduces energy consumption by up to 30%.
- Superior Corrosion Resistance**: Standard nickel-plated coating, with optional coatings such as PFA, PFA+Ni, and Hastelloy. Standard nodular cast iron construction, with optional stainless steel material to further enhance corrosion resistance.
- Reliable Sealing System**: Utilizes multiple lip seals + piston ring seals, equipped with seal purge for enhanced sealing safety. Optional mechanical seal configuration is available.
- Efficient Water-Cooling Design**: Enables highly effective pump temperature control.
- Compatibility with Roots Vacuum Pumps**: Can be combined with Roots vacuum pumps to form a fully oil-free dry vacuum system, further reducing energy consumption.
Technical parameter table of ZRS series dry roots screw vacuum unit
| Model |
SP-200 |
SP-350 |
SP-450 |
SP-650 |
SP-900 |
SP-1500 |
SP-2700 |
| RatedPumpingSpeed（M3/H） |
180/210 |
300/360 |
380/450 |
540/650 |
750/900 |
1250/1500 |
2250/2700 |
| UltimatePressure（Pa） |
1.3/1.0 |
1.3/1.0 |
1.3/1.0 |
1.3/1.0 |
1.3/1.0 |
10/7.0 |
10/7.0 |
| MotorPower（Kw,50/60GHz） |
4 |
7.5 |
11 |
15 |
18.5 |
30 |
55 |
| RotateSpeed（r/min,50/60Hz） |
2900/3450 |
2900/3450 |
2900/3450 |
2900/3450 |
2900/3450 |
1450/1750 |
1450/1750 |
| AirIntakes（mm） |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
| ExhaustPort（mm） |
40 |
40 |
50 |
65 |
65 |
80 |
100 |
| Weight（Kg） |
190 |
280 |
390 |
480 |
550 |
1320 |
2150 |
| GearOil（L） |
1 |
1 |
1.3 |
2 |
2 |
5.4 |
7.5 |
| CoolingWater（L/min） |
5 |
10 |
10 |
15 |
15 |
15 |
15 |