Small Type Small hydraulic cylinders are core actuators in hydraulic systems that convert hydraulic energy into mechanical energy to achieve linear reciprocating motion. They feature a compact structure and light weight, suitable for space-constrained or light-load scenarios. Widely used in machinery, automation, household equipment, and other fields, they provide precise and efficient power output for various small devices.
Classification
1. Classification by structure:
- Piston type: single/double acting, suitable for bidirectional motion control.
- Plunger type: single acting, commonly used for long stroke or vertical load scenarios.
- Telescopic (multi-stage cylinder): multi-section structure, long stroke but small retracted volume.
2. Classification by installation method:
- Eye ring type, flange type, foot mount type, etc., adapted to different mechanical structures.
3. Classification by pressure level:
- Low pressure (≤7MPa), medium pressure (7-14MPa), high pressure (≥14MPa).
Design Parameters
1. Output force: determined by cylinder diameter and working pressure, formula: F = p × A (p is pressure, A is piston area).
2. Motion speed: v = Q/A (Q is flow rate, A is piston area).
3. Efficiency: ≥90% (high-quality sealing and low friction design).
4. Lifespan: ≥1 million cycles (depends on working conditions and maintenance).
Process Introduction
1. Materials: cylinder tube made of high-strength seamless steel pipe, piston rod treated with quenching of 45# steel.
2. Processing:
- Cylinder tube honed/rolled, surface roughness Ra ≤ 0.8μm.
- Precision turning to ensure coaxiality.
3. Sealing: selected polyurethane or fluororubber seals resistant to high temperature and wear.
4. Assembly and testing:
- Full dust-free assembly, pressure testing (≥1.5 times working pressure).
- Dynamic testing to verify speed and leakage rate.
Application Scope
1. Industrial automation: robotic arms, conveyor lines, fixtures, precision machining equipment.
2. Logistics handling: forklifts, shelf lifting, pallet trucks.
3. Household/civil use: smart furniture (height-adjustable desks, beds), tools (jacks).
4. Construction and decoration: concrete vibrators, tile laying tools.
Keywords
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Small hydraulic cylinder
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