Back to Bar Feeder

Pneumatic Bar Feeder Activation Cylinder Assembly

SKU: 8815 Category:

About the Pneumatic Bar Feeder Activation Cylinder Assembly

We separated the bar feeder (P/N 8840) into two sections (P/Ns 8815 & 8825) for our customers who are interested in building their own bar feeder system.

The Pneumatic Bar Feeder Activation Cylinder Assembly is the section of the bar feeder that is used in conjunction with our machine and our lever collet closer to open and close the collet pneumatically. Click on the Instructions tab above to download the instructions for this assembly.

The Pneumatic Air Cylinder mounted to a CNC Chucker Lathe (machine not included). Click on the image for a larger view.

The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.


Always wear safety glasses when operating machine tools.

Download PDF 8815 Pneumatic Bar Feeder Activation Cylinder Instructions

Instructions PDF Download

  1. Air supply must be 80 PSI, minimum.
  2. Air pressure for the air cylinder (P/N 88040) is 70 PSI, maximum. However, we recommend 40 PSI. This is controlled by the air supply.
  3. Air pressure for the bar feeder is 20-30 PSI. This is controlled by the bar feeder air regulator (P/N 88054). CAUTION: DO NOT EXCEED 30 PSI!
  4. Lubrication for the bar feeder tube and the lever collet closer. We recommend a light machine oil such as “3-in-1 Oil,” or sewing machine oil.
  5. Base dimensions: Our base (P/N 88323) is 6′ x 8″ x 3/4″. If you are mounting the bar feeder on a different work surface, the surface must be at least 6′ long.

Introducing the Sherline Pneumatic Bar Feeder

Running a Part Program with the Pneumatic Bar Feeder

Part No. Description Quantity
12060 #8 Washer 2
40670 10-32 x 1/2″ SHCS 2
45014 5-40 x 3/8″ Button Head socket cap screw 2
88040 Air cylinder 1
88041 Air cylinder foot brackets (R & F) w/4 SS SHCS 1
88042 Air directional control valve 1
88043 5/32″ Connector fitting 2
88044 1/4″ Connector fitting 1
88045 Heim joint 1
88046 1/4-28 SS threaded rod 1
88047 1/4-28 Jam nut 2
88049 8-32 x 1-1/4″ SHCS 2
88050 Flow control valve 2
88052 5/32″ (4 mm) air line (6′ length) 2
88056 Air cylinder mounting plate 1
88058 Air cylinder cover 1
88060 1/4-20 Phillips head screw 3
88279 LCC Stud 1

We do not charge a flat rate for shipping because of the variations in weight for our products. Instead, we charge you what the shipping company charges us. Our website uses a shipping calculator based on the daily rates for USPS and UPS based on the weight and destination of the shipment. You can also have us use your UPS/FedEx account number to charge your shipping. Just enter it in the appropriate box on the checkout page.

Domestic orders are shipped Monday – Friday. Expedited orders must be placed by 9 am PST to ship the same day.

Orders shipping ground have a processing time of 7 working days for domestic orders and 14 working days for international orders. CLICK HERE for more information on our shipping and order policies.


Most merchandise can be returned within 30 days of the purchase date. A refund will be issued to the original form of payment at the original selling price. View our complete return policy and/or start your return online here.