Atlas Copco ROTO-Z BUS 5L – 2908 8503 00
Quick Specs
– Part Number: 2908 8503 00
– Description: ROTO-Z BUS
– Base Oil Type: Mineral
– Net Volume: 5L
– Product Status: Original
– Availability: In Stock
Ready to order or need a lead time quote?
Our team responds within 24 hours.
WhatsApp: +86 176 2510 0968
The Atlas Copco ROTO-Z BUS (part no. 2908-8503-00, 5L) is a mineral-based lubricant engineered specifically for Atlas Copco’s ZR, ZT, ZA, and ZE oil-free screw compressors — a different formulation from the synthetic oils we supply for oil-injected machines, since oil-free systems have distinct lubrication requirements around the drive/gearbox rather than the compression chamber itself.
Service intervals differ by compressor power: 8,000 hours for units under 55 kW, extending to 16,000 hours for units above 55 kW, within an ambient operating range of 0°C to 50°C. This 5L size is also available in 20L (part no. 2908-8501-01) and 209L (part no. 2908-8500-00) — worth checking which volume matches your compressor’s reservoir capacity and typical order frequency before purchasing.
Technical Details
| Part Number | 2908850300 |
| Description | ROTO-Z BUS |
| Brand | Atlas Copco |
| Ambient operating range | 0°C to 50°C |
| Net Volume | 5L |
| Weight | 4.5kg |
| Dimension | 29*20*14cm |
| Base Oil Type | Mineral |
| Packaging | Drum |
| Availability | In Stock |
| Country of Origin | France |
Equivalent / Replaced Part Numbers
– 2908850101 (20L)
– 2908850000 (209L)
Note: These are the same ROTO-Z BUS formulation in different container sizes, not interchangeable part numbers for a different product.
Recommended Application
Oil-free screw compressors — ZR, ZT, ZA, ZE series
Compatibility When Switching Oil Brands
Before Switching Oil Brands
Different lubricant lines use different base oil chemistries (mineral,PAO synthetic ,PAG synthetic),and mixing incompatible types can cause sludging,emulsification,or seal swelling.If you’re switching from a different brand or type,confirm the base oil chemistry matches —or plan for a system flush before introducing a new type.
Why Genuine Oil Matters
Why Genuine Lubricant Matters
Genuine Atlas Copco lubricants are formulated with specific additive packages for oxidation stability, and are tested for compatibility with the seal and gasket materials used in Atlas Copco air ends.Non-genuine or off-spec oils can shorten air end service life and may affect manufacturer warranty terms —this is one area where the cost difference rarely justifies the risk on a component as critical as the air end.
Common Questions
Can this oil be mixed with other brands or types?
We recommend against mixing different oil chemistries (mineral,PAO,PAG synthetic)unless confirmed compatible —mixing can cause sludging or reduced lubrication performance.If switching brands,a system flush is the safer option.
How long does one container last?
This depends on your compressor’s oil capacity and running hours — send us your compressor model and typical duty cycle,and we
can help estimate consumption.
How long can this oil be stored before use?
Unopened containers stored properly (sealed, indoors ,stable temperature)retain quality well.Once opened,we recommend using the oil within a reasonable timeframe rather than keeping it as long-term backup stock.
Are these genuine Atlas Copco lubricants?
Yes.Parts are sourced through Atlas Copco distributor channels.
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.