"Each product is warrantied against defects in workmanship."

Effective Greenhouse Ventilation Systems

Effective ventilation is imperative to any greenhouse. System USA Inc. is dedicated to creating ventilation systems that keep your greenhouse operating at the right temperature and humidity level no matter the outside conditions. This attention to detail ensures that your plants grow throughout your season and that they offer their highest yield.

Rack & Pinion

The BKT Rack and Pinion is the grower's choice for a trouble-free greenhouse ventilation system in glass and lighter-weight greenhouses. The reliability has been demonstrated through a high level of performance, low-maintenance record, and the quality of materials used, as well as the excellence of the design.

BKT systems are designed to last and surpass other rack and pinion limitations. Each of our products is warrantied against defects in workmanship, and the bronze rings are covered for up to 10 years against wear.

The BKT Rack

• Precision tooth shape and alignmant prevents excessive wear and ensures smooth operation.

• Heavy-duty design for maximum durability.

• Lifts up to 110 lbs. with straight rack.

• Can be used for double-pane insulated glass.

• Curved racks available with the same precision as the straight rack.

• Rack lengths:
36", 42", 48", 53", 60". Custom lengths also available.

The BKT Pinion

• Self-lubricating, long-lasting bronze bearings for increased reliability.

• Two stainless steel ball bearings at the rear for smooth rolling action.

• Manufactured from the most durable grade aluminium alloy available.

• Designed with thinker aluminium parts for better durability and protection againts shear.

• Pinion Tube Diameters: 1" and 1-1/4".