How do I estimate pneumatic cylinder stroke time?

Stroke time depends on: available force vs load, air flow capacity through the port, tubing losses, and cushioning. A simplified estimate: t ≈ (V × P_avg) / (Q_port × P_supply) + acceleration time, where V is swept volume and Q_port is the flow capacity of the valve/port.

What affects pneumatic cylinder speed?

Key factors: supply pressure, port and valve size (Cv/Kv), tubing diameter and length, bore size, stroke length, load mass, friction, and exhaust restriction. The port/valve is often the bottleneck.

How do I make a pneumatic cylinder faster?

Increase port/valve size, use larger tubing, increase supply pressure, add quick-exhaust valves, reduce load, use shorter stroke, and minimize tubing length. Quick-exhaust valves can dramatically improve retract speed.

What is the typical speed range for pneumatic cylinders?

Standard cylinders: 50–500 mm/s. High-speed cylinders: 500–3000 mm/s. Cushioned end-of-stroke: 10–50 mm/s. Speed controllers (flow regulators) allow fine adjustment.

What is a flow control valve Cv value?

Cv (or Kv in metric) represents the flow capacity of a valve. Cv is the flow of water in US gallons per minute at 1 psi pressure drop. Higher Cv = more flow capacity = faster cylinder speed. Kv = 0.865 × Cv.

免費工程工具 — #148

氣動缸響應時間計算器

使用簡化的流量/力模型，根據缸徑、行程、壓力、負載和接口尺寸估算氣動缸的行程時間。

行程時間流量模型力平衡

結果

估算行程時間

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平均活塞速度

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可用推力

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接口流量容量

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掃掠容積

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力利用率

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簡化行程時間模型

行程時間主要取決於透過接口限制填充氣缸容積所需的時間：

V — 掃掠容積 = A_缸徑 × 行程
Q_接口 — 透過接口的流量容量（接口面積和壓力的函數）
P_平均 — 平均填充壓力（約為 0.6–0.8 × P_供應)

⚠️ 注意： 這是一個簡化模型。實際行程時間取決於閥門切換時間、管路順從性、緩衝、摩擦和背壓。僅供估算使用；請透過實際測試驗證。

氣動缸響應時間計算器 | 免費工具

結果

簡化行程時間模型

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