Double-acting multi-stage hydraulic cylinders are typically designed to withstand heavy loads and harsh operating conditions.
They consist of multiple stages or telescoping sections that collapse and extend, providing a compact yet powerful means of hydraulic actuation. These cylinders are often constructed from high-strength steel or other durable materials to ensure longevity and reliability.
Bore Size:
The bore size of the cylinder determines the cylinder's capacity to generate force. For scissor lift applications, the bore size is carefully selected based on the weight capacity and lifting requirements of the specific lift. Common bore sizes range from 2 inches to 6 inches or more, depending on the lift's size and capacity.
Stroke Length:
The stroke length refers to the maximum distance the cylinder can extend and retract. It is a critical specification for scissor lifts as it directly affects the lift's vertical travel range. Stroke lengths can vary widely, from a few inches to several feet, depending on the lift's design and intended use.
Working Pressure:
The working pressure is the maximum hydraulic pressure that the cylinder can safely handle during operation. Scissor lifts often require high working pressures to support heavy loads. The working pressure specification ensures that the cylinder can lift and lower the platform with the required force safely.
Mounting Options:
Double-acting multi-stage hydraulic cylinders come with various mounting options to accommodate different scissor lift designs. Common mounting configurations include clevis mounts, flange mounts, and pin mounts. The choice of mounting option depends on the lift's structure and the cylinder's intended location.
Seals and Gaskets:
Proper sealing is crucial for hydraulic cylinders to prevent leaks and maintain efficiency.
High-quality seals and gaskets ensure that the hydraulic fluid remains contained within the cylinder and that contaminants are kept out. Seal materials are selected to withstand the hydraulic fluid's properties and temperature range.
Piston Rod:
The piston rod is a critical component responsible for transmitting force from the hydraulic fluid to the scissor lift platform. It needs to be made from a strong and corrosion-resistant material to withstand the dynamic loads and environmental conditions encountered during operation.
Control Options:
Double-acting multi-stage hydraulic cylinders can be controlled manually or electronically. Manual control typically involves a lever or valve for the operator to manage the cylinder's extension and retraction. In contrast, electronic control may involve sensors, feedback systems, and PLCs for precise and automated positioning.