QGD Series Compact (Thin) Cylinder Overview

    Compact cylinder bore sizes typically range from Φ12 to Φ100 mm (min Φ4, max Φ125 mm), with strokes of 5–80 mm (max 150 mm). The barrel and end caps are made of aluminum alloy. These belong to China’s second-generation cylinder products, with the QGD series as the primary representative—available in single-acting and double-acting versions.

    Buffering: Due to small bore and short stroke, impact forces are low; most use elastomeric buffer pads.
    Piston Sealing: Features either custom-profile or C-shaped bidirectional seals with oil reservoirs—supporting both oiled and oil-free lubrication for low friction and high reliability.
    Magnetic Option: Pistons come with or without embedded magnetic rings. The barrel includes a T-slot for magnetic switches, enabling automated position sensing.
    Assembly: Barrel-to-end-cap connection typically uses spring steel C-clips, though some models use crimped joints.

    Based on the standard design, variants include: double-rod, adjustable extension/retraction stroke, multi-stroke, guided-rod, anti-rotation, and single-acting models.