Gast 4AM-70C-CB20 Gear Motor at Kinequip is a compact, lubricated air-powered gear motor designed for high-torque, low-speed applications. Featuring a 20:1 gear reducer, this model delivers up to 740 in-lb of torque at a maximum speed of 150 RPM.
It offers instant start, stop, and reverse capabilities, making it ideal for applications where electric motors are impractical. The 4AM-70C-CB20 is stall-tolerant, cool-running, and safe for use in hazardous or extreme temperature environments. Its base-mount design and reversible rotation provide flexibility for OEM and industrial systems.
Quick Product Highlights
- Lubricated air-powered gear motor with 20:1 reducer
- Delivers up to 740 in-lb torque at 150 RPM
- Instant start, stop, and reverse operation
- Stall-tolerant and safe for hazardous environments
- Base-mounted with reversible rotation
Get your Gast 4AM-70C-CB20 Gear Motor at Kinequip today
What oil should be used?
Gast air motors require a 10 wt detergent oil; Gast AD220. If you do not have this oil 10w30 detergent oil may be substituted.
How much oil should be used?
One drop of oil for every 50 cfm of air used consumed.
How close should the lubricator be?
Gast recommends a filter, regulator and lubricator be placed within twenty inches of the air motor.
What line size should be used for Gast air motors?
The air line should be the same size or one size larger than the port.
Can an air motor be mounted in any position?
The Gast air motor can be mounted in any position.
Does Gast offer a repair kit for air motors?
Yes, Gast repair kits are available for most stock air motors.
What is in an air motor repair kit?
Most kits contain bearings, vanes, gaskets, filters and a maintenance manual.
What is the difference between a four-vane and eight-vane air motor?
An eight vane air motor is used when minimum speed is required or in inching applications.
Does Gast offer a non-lubricated air motor?
Yes, non-lubricated air motors are available in most sizes.
Does Gast offer a line of gear reducers?
Yes, a full line of gear reducers are available.
Shipping
We are committed to delivering your machine parts quickly and securely. Orders are processed within 1-2 business days, and shipping times vary based on your location and selected shipping method. Standard shipping typically takes 3-7 business days, while expedited options are available for faster delivery. We ship domestically and internationally, with tracking information provided for all orders. Shipping rates are calculated at checkout. Please ensure your shipping address is accurate to avoid delays.
Returns
We want you to be fully satisfied with your purchase. If you need to return a product, we accept returns within 30 days of delivery for a full refund or exchange, provided the item is unused, in its original condition, and includes all packaging. Customers are responsible for return shipping costs unless the return is due to a defect or error on our part. To initiate a return, please contact our support team with your order details. Refunds will be processed within 5-7 business days after receiving the returned item.
