GAST Rocking Piston Twin Oil-less Pump | 86R640-101-N470X

SKU: 86R640-101-N470X

$789.00

The Gast 86R640-101-N470X is a 1/2 hp oil-less rocking piston pump with dual heads, 125 PSI max pressure, and 3.65 CFM flow—ideal for clean, quiet, and durable air movement in industrial and medical systems.

Gast 86R640-101-N470X at Kinequip is a dual-head, oil-less rocking piston pump engineered for high-performance pressure and vacuum applications. Delivering up to 125 PSI and 3.65 CFM at 60 Hz, this 1/2 hp unit is ideal for industries requiring clean, quiet, and durable air movement. Its oil-free design ensures low maintenance and contamination-free operation, making it suitable for medical, laboratory, and environmental systems.

The 86R640-101-N470X features a compact, motor-mounted twin-cylinder configuration with thermal protection and a 100% duty cycle. It operates at reduced sound levels and lower exhaust temperatures, offering a longer service life and easier retrofitting. The pump is CE and UL approved and supports both 50 Hz and 60 Hz operation with voltages ranging from 110–240V.

Gast’s patented crossover chamber design helps dampen sound while optimizing airflow. The unit is compatible with the K963 service kit and can be upgraded with Sound Shield technology for up to 25% noise reduction. Accessories like filters, regulators, and mufflers are recommended for optimal performance.

Quick Product Highlights

  • 1/2 hp oil-less rocking piston pump
  • 125 PSI max pressure, 3.65 CFM flow
  • Dual-head, motor-mounted design
  • CE and UL approved

Get your Gast 86R640-101-N470X at Kinequip today.

Weight

19.1 lbs ( 8.66 kg )

Warranty

1 Year

Duty Cycle

100%

Max Pressure

125 psi ( 8.62 bar )

Flow‎ @ 50hz

3 cfm ( 5.1 m3h )

Flow‎ @ 60hz

3.65 cfm ( 6.2 m3h )

Max Vacuum @ 50hz

27.2 in-hg ( 921.1 mbar )

Max Vacuum @ 60hz

27.2 in-hg ( 921.1 mbar )

Operating Voltage

115-120-230-240/60 110-120-220-240/50

Thermal Protection

YES

Max Pressure @ 50hz

125 psi ( 8.62 bar )

Max Pressure @ 60hz

125 psi ( 8.62 bar )

Regulatory Approval

UL / CE

Can water be pumped through my unit?

No, clean dry air only.

I am an OEM looking to specify a custom 86R or 87R configuration for my needs. What customization options are available?

GAST offers custom solutions factory direct and through our authorized distribution network. Custom options available, but are not limited to: wiring & connectors, capacitor mounting & covers, port configurations, alternative mufflers and filters, pressure gauges & regulators, and bulk packaging. Please consult the factory (technical.gast@idexcorp.com) or find a local distributor to inquire further.

Does my 86R or 87R compressor or pump come from the factory with Sound Shield installed?

There are a few answers. Sound Shield is offered as an aftermarket upgrade to be installed yourself or at an authorized GAST distributor. Over time, GAST plans to introduce new 86R and 87R models with Sound Shield installed at the factory so please consult your local GAST distributor for availability. However, customers looking to buy GAST 86R or 86R models in bulk can consult the factory to consider creating a unique SKU with Sound Shield installed.

If I install Sound Shield, does it affect my factory warranty?

If properly fitted and operated under normal conditions of use, the remainder of the factory warranty will continue with Sound Shield installed.

How do I keep my 86R or 87R running at the same performance it left the factory?

Following the GAST recommended service intervals will help keep your compressor running at peak performance. We recommend service using a GAST Service Kit, as shown above in BUY KITS & ACCESSORIES every 2000 hours or every 2 years, whichever comes first. Additionally, if fitted with Sound Shield, the AS321 Silencers should be replaced during the same interval period.

Does Sound Shield cause an increase in temperatures in or around the compressor or pump?

Each compressor or pump configuration yields slightly different results, however, GAST testing has shown either a reduction in exhaust temperature or negligible temperature changes. Please consult the factory for specific model temperature data.

How does Sound Shield affect life of the 86R or 87R?

There is no impact to the life of the unit when proper preventative maintenance is performed. We recommend replacing our Sound Shield AS321 Silencers every 2000 hours or 2 years, whichever comes first.

Does Sound Shield impact air flow for either pressure or vacuum configurations?

Each compressor or pump configuration yields slightly different results, however, GAST testing has shown that vacuum models see negligible changes while pressure models see minimal changes in flow. Please consult the factory for specific model flow data.

Can additional filters be added to an 86R or 87R that has already been fitted with Sound Shield?

No, the internal silencer located within Sound Shield takes up the entire port; therefore, additional mufflers or filters cannot be added.

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.