Three leaf Roots vacuum pump

NegotiableUpdate on 03/02

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Roots vacuum pump cannot be used alone and must be used in conjunction with a front-end vacuum pump. After configuring different types of front-end pumps, the performance indicators of the vacuum pump will vary.

Product Details

Three leaf Roots vacuum pumpOverview

The Roots vacuum pump has two three bladed rotors, which are driven by a pair of synchronous reverse rotating high-precision gears. The figure on the right shows the rotors rotating 120 ° inside the pump chamber to complete a suction and exhaust process. The three bladed rotor adopts a gradually opening line shape, which does not contact each other and maintains a constant gap during rotation. It can be matched with various front-end pumps, using air or water cooling methods and multiple sealing forms to meet different process and working condition requirements.

Compared to traditional two blade Roots pumps, it has significant technical advantages in key performance indicators such as pumping efficiency, large allowable pressure difference, temperature rise, vibration, and noise. The three bladed rotor adopts high-precision gear transmission and precision bearing support, with low noise and smoother operation, and still has a high pumping rate under low inlet pressure.

Main Features

High speed, high volume ratio, low temperature rise, and low vibration.

Simple structure, good reliability, easy operation and maintenance.

The rotor is locked tightly, with no axial movement and a lower failure rate.

All flat static seals adopt O-ring seals, which can be repeatedly disassembled and assembled.

The main shaft adopts mechanical seal to ensure that the pump chamber is free of oil and long-term leakage.

The end cap seal can adopt various forms such as mechanical seal, skeleton, piston ring, and labyrinth seal.

Scope of application

San Ye cannot be used alone and must be used in conjunction with a front-end vacuum pump. After configuring different types of front-end pumps, various performance indicators may vary. Mainly used in vacuum systems that require high pumping speed and coarse/medium vacuum (103~10-2Pa), such as vacuum coating, vacuum welding furnaces, vacuum heat treatment furnaces, large-scale space simulation experiments, microelectronics and integrated circuits, lamp and light bulb manufacturing, vacuum packaging, centralized pumping systems, various chemical treatments, vacuum degassing, vacuum dehydration, vacuum freeze-drying, and vacuum distillation.

Specifications

model	pumping speed (L/S)	ultimate pressure (pa)	Allow pressure difference (pa)	Matching power (Kw)	speed (rpm)	air intake (mm)	exhaust vent (mm)	Total weight (kg)	Recommended front-end pump
ZJ-70	70	≤0.05	≥1.2×104	1.5	2900	100	80	198	2x-15
ZJ-150	150	≤0.05	≥1.2×104	3	2900	100	80	198	2x-30
ZJ-300	300	≤0.05	≥1×104	4	2900	150	100	290	2x-70
ZJ-600	600	≤0.05	≥8×103	5.5(7.5)	2900	200	150	490	ZJ-150 2x-30
ZJ-1200	1200	≤0.05	≥6×103	11	2900	250	200	790	ZJ-300 2x-70
ZJ-2500	2500	≤0.05	≥5×103	18.5	2900	320	250	1550	ZJ-600 H-150
ZJ-5000	5000	≤0.05	≥4×103	37	1450	400	320	3080	ZJ-1200 H-150
ZJ-10000	10000	≤0.05	≥3×103	55	1450	500	400	5000	ZJ-1200 H-150
ZJ-20000	20000	≤0.05	≥3×103	110	1450	800	750	9500	ZJ-1200 H-150

Note: The above performance indicators are obtained under the conditions of using the recommended front-end pump. If different front-end pumps are selected according to the situation, their main performance indicators may vary. The pumping rate refers to the maximum pumping rate measured within the range of 67pa~2.67pa at the inlet pressure when using the recommended front-end pump. (See performance curve) The ultimate pressure refers to the lowest value of the stable air partial pressure measured at the pump inlet by a compression vacuum gauge after sufficient pumping, without any additional containers, with a sealed pump port and no air intake, under the conditions of using the recommended front-end pump.