Real stock photograph of Atlas Copco rotary spur-gear power head 57569980.

Pneumatic Drilling System

Gear Rotation Unit

Name: Gear Rotation Unit
Brand: Heavy Rig

Gear-type rotation unit for pneumatic top-hammer drilling. Verify ratio, output interface, lubrication method and installation dimensions.

Brand compatibility: Atlas Copco compatible pneumatic drill systems

Supplier stock photograph and listing2 part-number referencesRig and gear-ratio check required

57569980Assembly referenceT4W / T4BHListed rigs57117764Motor referenceRatio, output spindle Selection

Get compatibility check & quote View part numbers

Typical response within 1 business day

Correct part. First time.

Confirm fitment before ordering.

OEM number

Share the original part number and clear photos of all markings.

Machine identity

Provide the equipment model, serial number and production year.

Interface details

Confirm dimensions, thread, connectors and mounting points where applicable.

Operating conditions

Tell us the application, environment and required delivery timeline.

Technical reference data

Product information tied to the photographed reference.

Published values describe the named reference. Final fitment is confirmed from the equipment model, serial number and interface details.

Reference data

Assembly reference: 57569980
Listed rigs: T4W / T4BH
Motor reference: 57117764
Selection: Ratio, output spindle and mounting

Part number references

References associated with this product category.

2 published references are grouped on this page. Confirm the equipment model, serial number and interface before ordering.

Part / model reference	Brand reference	Application	Reference detail	Source status	Inquiry
57569980	Atlas Copco reference	T4W / T4BH spur-gear power head	Complete rotary power-head assembly	Supplier listing	Request
57117764	Atlas Copco reference	57569980 power head	Installed hydraulic motor reference	Supplier listing	Request

Heavy Rig support

Parts identification through delivery.

Fitment review

We cross-check the supplied identity and interface information.

Supply confirmation

Brand, condition, quantity, lead time and delivery scope are confirmed in writing.

Shipment follow-up

Packing and shipping documents are coordinated through one Heavy Rig contact.

Request a quote

Need a rig matched to your rock, depth and site conditions?

Send your target hole diameter, depth, rock type and timeline. Heavy Rig will help narrow the configuration.

Start Inquiry