Start here when your process needs an oil-free pumping path. Working pressure, flow rate, gas or vapor composition, and duty cycle decide how the dry screw vacuum pump should be reviewed.
Recently Sold Vacuum Pump Reference
The same dry screw vacuum pump model can deliver different usable flow rate at different target pressures. These recent sales references show tested flow rate from finished pumps.
Series: SDR-TF series. Flow adjustment: Motor speed and configuration are reviewed against the duty point.Selection status: Confirmed reference point
Series: SDR-TF series. Flow adjustment: Motor speed and configuration are reviewed against the duty point.Selection status: Confirmed reference point
Flow rate can be reviewed by motor speed and configuration against the required duty point.
SDR Series
Use these series pages when the exact model is not confirmed yet. Final selection still depends on working pressure, flow rate, gas condition, and operating duty.
SDR-TF series. TF Series is an SDR dry screw vacuum pump sub-series. Use this path before reviewing TF105, TF225, or another confirmed TF model. Final review still needs working pressure, volumetric flow rate, and process gas data.
SDR-QER series. QER Series is an SDR dry screw vacuum pump sub-series path prepared for future source-backed technical details and RFQ discussions.
SDR-QGR series. QGR Series is an SDR dry screw vacuum pump sub-series path prepared for future source-backed technical details and product-family review.
RFQ Selection Path
01
Send approximate values if exact data is not ready yet.
02
Confirm whether the process includes solvent vapor, wet gas, dust, oxygen sensitivity, or corrosive gas.
03
Review operating hours, start-stop pattern, temperature, cooling water, and site safety limits.
04
Check pump size, speed-control option, seals, accessories, and control logic against the actual duty.
Selection Resources
For a dry screw vacuum pump quote, working pressure and volumetric flow rate are enough to begin the first selection review. Process details can be checked during follow-up.
Open guide
Start dry screw vacuum pump selection with working pressure and volumetric flow rate, then send an RFQ so the actual gas condition, duty cycle, and site requirements can be reviewed.
Open guideOur Advantage
We keep improving dry screw pump performance against international supplier benchmarks, with input from university research and factory service feedback. Each selection starts from the working pressure, flow rate, gas condition, and duty cycle, so the pump package can meet the process requirement without adding unnecessary system cost.
Our customized sealing structure is designed to keep the screw housing dry and separate the process gas from the lubrication system, reducing the risk of lubricating oil contamination in the gas path.
Our customized sealing structure is designed to keep the screw housing dry and separate the process gas from the lubrication system, reducing the risk of lubricating oil contamination in the gas path.
Factory Basis
SC Air Power Tech is the overseas-facing brand operated by Zhejiang Kelexi Power Equipment Co., Ltd. For international buyers, the manufacturing team can help review pump selection, confirm configuration details, follow up on testing, and support export communication.
Plan a Visit
Approximate values are acceptable for the first review. We can discuss gas condition, temperature, duty cycle, and site requirements during follow-up.
