KQ-Series-Hollow-Rotary-Pneumatic-Cylinder-Hoshing

KQ Series Hollow Rotary Pneumatic Cylinder

High-speed hollow rotary pneumatic cylinder with large through-hole, matched with pneumatic power chucks for CNC lathe, stable pulling force and low air consumption.
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Description

KQ series hollow rotary pneumatic cylinders are precision-manufactured with high-strength alloy steel, the standard matching pneumatic actuator for lathe hollow power chucks.
  1. Large central through-hole design supports long bar automatic feeding processing, perfect for continuous batch production.
  2. Double-acting piston structure provides stable and uniform pulling force, ensuring reliable clamping of pneumatic chucks.
  3. High dynamic balance design, maximum rotating speed up to 5000rpm, suitable for high-speed precision turning operations.
  4. Built-in high-performance sealing elements, effectively prevent air leakage during long-term continuous operation and reduce air consumption.
  5. Standard thread connection specification, directly compatible with mainstream 6/8/10 inch hollow pneumatic chucks on the market.
  6. Compact overall structure, convenient for rear installation and maintenance on lathe spindles.

Complete Specification Table (Unit: mm / kg)

Performance Parameters

Model Piston area (cm²) Stroke (mm) Highest turnover number Maximum working pressure Max. pull force (Kgf) GD² (Kg·m²) Weight (kg)
Press the side Pull side MPa kgf/cm² Press the side Push the side
KQ90 59.8 59.8 4 4500 0.8 8 430(4.2) 430(4.2) 0.01 2.3
KQ130 114.9 114.6 4 5000 0.8 8 827(8.1) 824(8) 0.04 8.4
KQ150 154.65 143.5 15 4500 0.8 8 1114(10.9) 1603(10.1) 0.09 9.5

Mounting & Outline Dimensions (Part 1)

Model A B D E(h7) F1 F2(H8) G1 G2 H L
max min max min
KQ90 90 112 100 65 22 16 4 0 20 16 41 20
KQ130 130 160 143 110 45 36.5 4 0 30 26 47 25
KQ150 150 180 163 110 65 50 15 0 40 25 64 30

Mounting & Outline Dimensions (Part 2)

Model M1 M2 M3 O(h7) N R T U X Price
KQ90 M18×1.5 M22×1.5 6-M6×65 16 - 20 - 63 -
KQ130 M38×1.5 M44×1.5 6-M8×60 34 M5×10 42 70 92 85
KQ150 M55×2 M52×1.5 6-M8×75 46 M6×10 50 82 104 97

Parameter Explanation

  • Piston area : Effective compression area of push and pull pistons, determines the output clamping force of the matched pneumatic chuck
  • Stroke : Maximum effective pull/push travel of the piston
  • Highest turnover number : Maximum allowable spindle rotating speed under safe operating conditions
  • Maximum working pressure : Rated maximum pneumatic input pressure
  • Max. pull force : Output pulling force under standard working air pressure
  • GD² : Inertia factor for spindle dynamic balance check
  • A/B/D/E/F1/F2/G1/G2/H/L/M1/M2/M3/O/N/R/T/U/X : Overall and installation dimensions (unit: mm), corresponding to the engineering drawing markings

Applications

CNC Machining

Ideal for CNC lathe, milling and machining center operations, ensuring high-precision dimensional control and reliable tool holding for mass production.

Quality Control Labs

Suitable for quality inspection departments and calibration labs, providing accurate measurement data to verify product compliance with ISO and industry standards.

Mold & Die Making

Perfect for mold and die workshops, where micron-level precision tools and gauges are essential for complex cavity machining and final inspection.

OEM/ODM Projects

Customizable solutions for OEM and ODM manufacturing partners, offering tailored measuring tools and CNC accessories to meet unique production requirements.

Automotive Manufacturing

Designed for automotive component production lines, ensuring consistent precision and durability in engine parts, transmission components and assembly processes.

Aerospace & Precision Engineering

Ideal for aerospace and defense manufacturing, where ultra-high precision instruments and reliable tool holders meet strict quality and safety requirements.

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