Drive performance in the milking parlor.
Every detail of the traditional liner has been re-engineered to create the RST-Driver. Designed to enhance cow comfort and improve milking performance, it’s built to deliver results in the parlor.
Ready to elevate your milking setup? Explore the RST-Driver now and see how it can transform your setup. Scroll down to learn more!

- Enhanced cow comfort: The transitional square barrel maintains low and stable mouthpiece vacuum to help protect teat health, reducing discomfort and irritation during milking
- High-speed milking: Achieve faster milk outs, improved milk flow, and low slip, ensuring an efficient milking process
- Longevity: The durable rubber formulation and nylon shell provide up to 2,500 cow milkings before replacement is required.
- Proven reliability: Independently trialed and engineered to outperform leading competitors, ensuring superior, consistent performance. See trial results.
- Ideal for large herds: Designed for high capacity and optimized milk flow, it’s ideal for fast-paced dairy operations, increasing productivity and minimizing downtime.

- Transitional barrel shape: The innovative round-to-square barrel minimizes mouthpiece vacuum, promoting teat-end health
- High-performance rubber: Delivers long-lasting performance, with up to 2,500 milkings before replacement
- Custom-molded shell: Designed for use with a lightweight, durable nylon PS140 shell, reducing cluster weight for easier handling
- High-capacity milk tube: Provides a high flow rate and stable vacuum for faster milking performance
- Anti-twist skirt and hackle: Ensures a secure fit, creating a positive seal that keeps pulsation lines clean and pulsators running optimally
- Vented milk tube:Directs milk away from the teat to maintain stable claw vacuum. Features a new clog-free vent and molded vent seat for secure vent retention
- Vented and non-vented options: Customizable to suit different milking systems and herd needs

Liner dimensions
- 21mm mouthpiece opening
- 51mm outside diameter (OD) head
- 10mm lead-in at the end of the claw tube
- 11mm internal diameter (ID) at the bumper section tapering to 13.5mm ID at the top of the milk tube for high flow rates
- Use Evolution JC jetter cup, Evolution WC wash cup, or Evolution WC-B wash cup.
Service life
2,500 cow milkings or 180 washes.
Service life is based on optimal washing conditions and may vary.
Touch point
5.2″ hg
Average claw vacuum peak flow
11.8″ – 12.3″ hg
Best practices for liner transition

Curious how the RST-Driver stacks up? We put it to the test against leading competitor liners and it delivered faster milk flow, shorter milking times, and higher milk yield. Explore the trial data and see how the RST-Driver can boost your parlor’s performance.