TDI has introduce the TurboTwister line compact turbine air starters designed to enable one basic model configuration to serve engine sizes ranging from 20-150 L.

A Twist On Air Starters

Simple, Rugged Design Results in Longer Lasting Air Starter

TurboTwister is a study in rugged simplicity. Fewer moving parts. TDI engineered the starter version to include a new solenoid design which is more tolerant to contamination and vibration which are often present in typical applications. The result is TDI’s most rugged, reliable air starter. It will be less susceptible to failure in harsh environments, thereby lasting longer, which will actually reduce the cost of ownership.


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A Twist On Air Starters

TurboTwister is Unmatched for Power & Versatility One Starter for Engines from 20 to 150 Liters!

TurboTwister is pound-for-pound the most powerful air starter in the industry. Through simplicity in design, the size and weight are remarkably compact for the output it delivers. It delivers more power per unit of air than even our TurboTwin design. And the flexibility to run 45-150 psig/ 3.1-10.3 BAR makes it an affordable solution for application on engines from 20 to 150 liters.

TurboTwister line compatible with engines from 20 to 150 L


TDI has introduced the TurboTwister line compact turbine air starters designed to enable one basic model configuration to serve engine sizes ranging from 20-150 L..

“TurboTwister is the result of many conversations with customers about what they wanted in the next generation of air starters,” said Dave Rawlins, senior product manager at TDI. “We’ve added more power and a complete start system in a smaller footprint. We’ve made it even more air efficient, but the most important aspect of the TurboTwister line is that our customers will be able to stock and order one basic model to cover the vast majority of their fleet of engines.”

The TurboTwister line includes four base models: the T6A starter only, the T6B starter-only with integrated relay valve, and the T6C which has a complete integrated start system including the starter, relay valve, solenoid and control lines. The fourth model is a T7A, which is specifically designed for gas-supply applications with 3-in. NPT exhaust to allow customers to pipe supply gas away for meeting regulatory compliance standards. TurboTwisters weigh between 36-38 lb. (16.3-17.2 kg) and have the flexibility to run 45-150 psig (3.1-10.3 bar).

“One of our goals for TurboTwister was to help simplify our customers’ business operations by providing extremely versatile base models – four to be exact,” Rawlins said. “Another core design feature is the simplification of installation. The T6A starter-only model is an easy bolt-on for retrofitting engines where manual controls are already in place. For packagers or customers who like the simplicity of a plug & play retrofit, we have the T6B with integrated solenoid and relay valve. Both of these models feature a singular orientation, which further simplifies ordering and installation.”

Where ATEX, USCG C1D2 CSA, CE, and other environmental requirements apply, TDI has fully compliant models for both air and natural gas/hazardous service. The T7A for gas-operation model features a 3-in female NPT outlet and optional flanged inlet and exhaust connections.

TurboTwister units have been in the field since the beginning in 2017. Full year production began in July. TurboTwisters are now available and shipping from TDI’s factory in Dayton, Ohio, USA.