Atlas Copco O.F.S. Q-21 – 1616635681
Quick Specs
– Brand: Atlas Copco
– Part Number: 1616635681 (1616-6356-81)
– Description: O.F.S. Q-21
– Type: Oil-Free Screw
– Condition: Genuine New
– Availability: On Request
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The Atlas Copco 1616635681 is a genuine O.F.S. Q-21 air end — the “O.F.S.” designation marks it as an oil-free screw element, distinct from the oil-injected (O.I.S.) elements we also supply. It is used in Atlas Copco’s ZR/ZT oil-free compressor platform, including reference to the ZR160VSD unit specifically.
Oil-free compressors are typically specified where compressed air must not risk oil contamination — food and beverage processing, pharmaceuticals, and electronics manufacturing are common examples. At 904 kg, this is among the largest elements we supply, consistent with the industrial-scale ZR/ZT platform it serves. Please confirm your compressor’s nameplate part number before ordering.
Technical Details
| Part Number | 1616635681 |
| Description | O.F.S. Q-21 |
| Brand | Atlas Copco |
| Status | Original |
| Condition | New |
| Weight | 904kg |
| Dimension | 1260*860*850mm |
| Application | Oil-free Screw |
| Packaging | Wooden crate |
| Availability | On Request |
| Country of Origin | Belgium |
Signs This Air End Needs Replacement
– Decline in air delivery or working pressure at the same load
– Rising discharge temperature without a clear cause
– Increased vibration or noise from the compression chamber
– Any sign of oil or contamination in the compressed air output — critical for oil-free systems, where this directly affects downstream product quality
Common Questions
How do I confirm this is the correct part for my compressor?
Send us the part number and a photo of the compressor nameplate. We will verify compatibility before issuing a quotation.
What payment methods do you accept?
T/T (bank transfer).
What is the typical lead time?
Common consumables (filters, oil) typically ship within about 1 week. Lead time for other spare parts depends on stock availability — please contact us for a confirmed schedule.
Do you inspect parts before shipment?
Yes. We provide full photos and video of the actual item before shipment, and confirm everything is correct with you prior to dispatch.
What shipping options are available?
If you have your own freight forwarder, we can ship to them directly. If not, we can provide shipping options based on your preference.
Are these genuine parts?
Yes. Parts are sourced through Atlas Copco distributor channels.