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MK series Free mount cylinder

Complies with enterprise standards;
Features multiple mounting options for the cylinder body, ensuring easy installation and use;
Allows for side-by-side mounting of multiple cylinders, effectively saving installation space;
Offers high piston rod guidance precision; no additional lubrication required;
Equipped with a piston rod mounting block to prevent rod rotation;
Available in a wide range of specifications and models to meet customer needs;
High-temperature resistant sealing materials available, supporting an operating temperature range of 0–150°C.
(This is an optional feature)

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MK series Free mount cylinder is an upgraded version of the MD non-rotating cylinder; it is a square-profile, multi-mounting cylinder that allows for installation on all six sides. Featuring a built-in anti-rotation mechanism, the piston rod does not rotate during extension or retraction. It is designed as a direct equivalent to the SMC CQS non-rotating series.

Operating Principle:
Double-acting (MK): Air is supplied alternately to both ends, causing the piston to drive the extension and retraction of the piston rod; an internal anti-rotation pin mechanism locks the piston rod, preventing it from rotating.
Single-acting (MSK/MTK): Return movement is achieved via an internal spring; this type also features an anti-rotation function.

The MK series consists of multi-position fixed-type cylinders.
Multiple mounting configurations: axial front-end mounting, axial rear-end mounting, and lateral mounting on the left, right, bottom, or top surfaces.
The cylinder body features grooves for magnetic sensors, making the installation of sensors (magnetic switches) convenient.
Parallel mounting of multiple pneumatic cylinders: parallel fixation effectively saves installation space, with options for left-side or right-side mounting.

A variety of pneumatic cylinder specifications are available: MK (double-acting), MSK (single-acting, push type), MTK (single-acting, pull type), MKD (dual-rod, double-acting), and MKJ (dual-rod, double-acting with adjustable stroke).

Cylinder Theoretical Output Force Chart

Standard Specifications

Inner diameter mm (bore diameter)		6	10	16	20	25	32
Form of action	MD/MDD/MDJ	Double-acting type
	MSD/MTD	Single-acting extrusion type, single-acting insertion type
Working Medium		Air (filtered through a 40 µm mesh screen)
Operating pressure range	Double-acting type	0.2~1.0Mpa（28~145Psi）		0.15~1.0Mpa（22~145Psi）
	Single-acting type	0.2~1.0Mpa（28~145Psi）
Guaranteed pressure resistance		1.5Mpa（215Psi）
Operating Temperature		-20°C~70°C
Operating speed range		Double-acting type: 30~500 mm/s Single-acting type: 50~500mm/s
Travel tolerance range		+1.0
Cushioning type		Anti-collision pad
Port thread size		M5*0.8					PT1/8

Available thread specifications for the port connection include PT and G threads.

Standard Stroke

Inner diameter mm (bore diameter)		Standard stroke (mm)	Maximum stroke
6	Double-acting type	5.10.15.20.25.30.35	35
6	Single-acting type	5.10.15.20	20
10	Double-acting type	5.10.15.20.25.30.35	35
10	Single-acting type	5.10.15.20	20
16	Double-acting type	5.10.15.20.25.30.40.50	50
16	Single-acting type	5.10.15.20	20
20	Double-acting type	5.10.15.20.25.30.40.50.60	60
20	Single-acting type	5.10.15.20	20
25	Double-acting type	5.10.15.20.25.30.40.50.60	60
25	Single-acting type	5.10.15.20	20
32	Double-acting type	5.10.15.20.25.30.40.50.60	60
32	Single-acting type	5.10.15.20	20