Airflex · Torque Limiters, Rotorseals & Controls

Airflex Torque Limiters, Rotorseals & Controls

Airflex, a Vickers by Danfoss brand (formerly Eaton Airflex). Torque limiter couplings for VFD-driven grinding mills, plus the rotorseals, quick release valves, slip detection and controls that keep Airflex drives running to spec.

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Overview

Airflex torque limiter couplings are built on proven VC clutch technology to withstand the torque spikes in VFD-driven grinding mills. The rotorseals, quick release valves and controls that feed Airflex clutches and brakes are just as important to reliable operation, and genuine parts keep them at original specification.

Gordon Russell is an authorized Airflex distributor and service centre in Western Canada, with application help, genuine parts, and rebuild and repair service for all Airflex clutches and brakes.

Looking for a part? Search by part number or element size in the Airflex Parts Finder.

Series

TLC · Torque Limiter Coupling

Up to 12,109,375 lb•in (1,368,175 N•m) in five sizes
Monitors torque continuously and disengages instantly on overload
Resets by reapplying air pressure, with no mechanical parts to replace; in service for more than 30 years

Typical applications: SAG, AG and ball mills on VFDs.

Browse TLC parts →

Rotorseals

Transfer air or fluid from a stationary inlet to a rotating shaft
Spring-loaded non-metallic seal ring limits leakage and wear
Single, dual and triple passage designs

Typical applications: Every air-actuated Airflex clutch and brake.

Browse Rotorseals parts →

QRV · Quick Release Valves

In-line, three-way valves that cut exhaust lag for faster response
3/8, 1/2, 3/4 and 1 in. sizes
Optional mufflers

Typical applications: Fast clutch and brake release.

Browse QRV parts →

Slip Detection & Controls

Slip Detection Control panels monitor clutch slip and abort on excessive slip
Catch fast and long starts to protect motors and drivetrains
Air tank groups, valves, hose and fittings; inching drive systems for mill maintenance

Typical applications: Grinding mills and critical drives.

Browse Slip Detection & Controls parts →

Specifications

Series	Capacity	Key feature
TLC	Up to 12,109,375 lb•in (1,368,175 N•m) in five sizes	Monitors torque continuously and disengages instantly on overload
Rotorseals	Transfer air or fluid from a stationary inlet to a rotating shaft	Spring-loaded non-metallic seal ring limits leakage and wear
QRV	In-line, three-way valves that cut exhaust lag for faster response	3/8, 1/2, 3/4 and 1 in. sizes
Slip Detection & Controls	Slip Detection Control panels monitor clutch slip and abort on excessive slip	Catch fast and long starts to protect motors and drivetrains

Ratings from Airflex published data. Confirm selection with a Gordon Russell application engineer.

Airflex TLC parts by type

Part type	Listed parts
Element	1	View parts →
Kit	2	View parts →
Side Plate	1	View parts →

Airflex Rotorseal parts by type

Part type	Listed parts
Assembly	49	View parts →
Bearing	9	View parts →
Housing	13	View parts →
Kit	24	View parts →
Other Component	29	View parts →
Seal	9	View parts →
Shaft	12	View parts →
Spring	8	View parts →

Airflex QRV parts by type

Part type	Listed parts
Assembly	22	View parts →
Diaphragm	3	View parts →
End Cap	1	View parts →
Housing	1	View parts →
Kit	8	View parts →
Muffler	2	View parts →
Other Component	8	View parts →

Airflex Controls parts by type

Part type	Listed parts
ATG Component	25	View parts →
Air Tank Group	28	View parts →
Electrical Control	12	View parts →
Pipe/Tube/Hose	279	View parts →
Valve	57	View parts →

Airflex Torque Limiters, Rotorseals & Controls Catalogs & Manuals

Catalogs, fact sheets and installation, operation & maintenance (IOM) manuals. Can't find your model? Send us the nameplate or part number and we will send the right document.

Document	Type	Download
Torque Limiters, Rotorseals, Valves & Controls
Airflex Controls & Air Tank Groups (Section J)	Catalog	PDF
Airflex Rotorseals & Quick Release Valves (Section I)	Catalog	PDF
Airflex Service Kits (Section K)	Catalog	PDF
Airflex Inching Drive Systems	Brochure	PDF
Airflex Slip Detection Control	Brochure	PDF
Airflex Torque Limiting Couplings	Brochure	PDF
Airflex AA2, B2, B3 and C2 Rotorseal	IOM / Manual	PDF
Airflex Grinding Mill Slip Detection Control	IOM / Manual	PDF
Airflex Pneumatic Torque Limiter Control	IOM / Manual	PDF
Airflex Pneumatic Torque Limiter	IOM / Manual	PDF
Airflex Quick Release Valve	IOM / Manual	PDF
Airflex RH Rotorseal	IOM / Manual	PDF

12 documents.

See all Airflex literature on the Airflex clutches & brakes page.

Frequently Asked Questions

What does a torque limiter coupling do?

It protects the driveline. The TLC monitors torque continuously, disengages instantly when an overload spike hits, and resets simply by reapplying air pressure, with no shear pins or mechanical parts to replace.

How do I identify my rotorseal?

Rotorseals are identified by model (for example AA2, B2, B3, C2 or RH) and number of passages. Search the parts finder by model or send us a photo of the nameplate.

Why use a quick release valve?

A QRV exhausts air right at the clutch or brake instead of back through the supply line, cutting exhaust lag so the unit releases faster.

Is Eaton Airflex the same as Vickers or Danfoss Airflex?

Yes. Airflex was an Eaton brand for decades. Danfoss acquired Eaton's hydraulics business in 2021, and Airflex is now part of Vickers by Danfoss, alongside Vickers hydraulics. It is the same product line, from the same engineering team, with the same part numbers, so we supply genuine parts and rebuilds whether your unit says Eaton, Danfoss or Vickers.