Coats® 4050A Center Post and 5040A/E Rim Clamp®

Rim Clamp® Model 5040A/E®

Highly Capable and Cost Effective For Today's Busy Shops

Clamps Wheels Externally Up to 21"
Wheels keep getting bigger and more easy to damage. The Coats 5040A/E allows you to service larger assemblies up to 21" while providing the speed you need to keep the work moving through the shop - So you can work quickly on a variety of applications.

The Power You Need at Every Step
The 5040 has conveniently-placed foot pedals that give you precise control over every step of the changing process. The Coats 1.5 hp motor (air model) helps smoothly install performance tire beads without damage. A powerful bead loosener has three support blocks and a sculpted blade to make quick work of even the most stubborn tires. Smooth operation provides faster floor to floor times and “on times”.

Legendary Performance
The Coats Rim Clamp® platform has become the industry standard for speed, durability, and ease of use. Count on your shop staying more productive, year after year.

Protect Those Expensive, Delicate Wheels
The Coats 5040A/E provides protection for wheels at every step of the process. Optional bead loosener socks, clamp booties, and lift tool  protection prevent metal-to-metal contact that causes scratching or marring.


Wheel Capability Steel, many alloys, and some performance applications.
Tool Head Offset Adjustment Spring assisted lift, manual set back, and lock.
Shape of Tabletop “X” shaped for rigid perimeter support of the wheel.
Wheel Clamping Method Four self centering clamps in table top actuated by pneumatic cylinder.
Bead Loosening System Foot control actuates cylinder that handles wheels up to 10.5” wide.
Drive System (Electric) 110v, 15A, single phase; 110 to 175 PSI, 2 HP compressor, 5 SCFM at 150 PSI
Required Air Source (Air Drive) 110 to 175 PSI, 5 HP compressor, 14 to 15 SCFM at 150 PSI
Pressure Limiter Standard
Bead Seating Reservoir 3.4 gal. tank, pressure protected.
Inflation Gauge Easily calibrated 0 to 60 PSI gauge with protection to 200 PSI. Damage resistant Lexan faceplate.
Filter Lubricator Standard with automatic drain and large capacity lubricator bowl.
Clamping Range 10” - 21” External.
12” - 24” Internal.
Maximum Tire Width 10.5 inches.
Maximum Tire Diameter 50 inches.
Chassis Footprint 35” wide x 44” deep x 70” high
Shipping Weight 585 lbs.


Model 4050 Center Post

Fast Center Post Operation

The COATS Model 4050 Center Post Tire Changer is super fast and super powerful. All operations--bead loosening, demounting, mounting, and inflation--are performed in the same position.

The contoured tabletop provides proper rim support, and a 7.5 gallon surge tank is 50 percent larger than competitive models for the inflation power when you need it.

The 4050 set the industry standard for high-volume tire changing. And for some shops, it's still the machine of choice.


Rim Diameter 10" to 17-1/2"
Rim Width 1-1/2" to 10-1/2" (to 19" with adapters)
Tire Diameter 38" Max. Outside
Drive System Air (Dual, Chrome Plated Cylinders)
Air Source 110 to 175 PSI
Chassis Footprint 53"W x 17"D x 42"H
Power Requirement 2 HP Air Compressor, 5SCFM @ 150PSI Capable
Shipping Weight 575 lbs.