Magnetic Type Rodless Cylinder

If you're comparing across the rodless cylinder range, the structural difference is what should drive the choice:

Series	Guide Structure	Best Suited For
CY1L	Integrated sliding guide	Long stroke runs where installation length is the main constraint
RMTL	Double guide rod	Loads applied off-center or from the side, where positioning accuracy under lateral force matters most
CY3B	Ball bearing slider	Heavier loads and high-frequency cycling, where low running friction and larger bore capacity matter most

A quick way to think about it: if the load is centered and the priority is minimizing wear over a high cycle count, or the application needs a bore larger than 40 mm, CY3B is usually the right starting point.

 

• Lower running friction over the full duty cycle. Ball bearings reduce the contact resistance that a plain sliding or bushing guide accumulates over time, which matters most in applications running continuous shifts rather than occasional cycles - friction that stays low at cycle 1 tends to stay low at cycle 100,000 as well.
• Bore range extends to cover heavier loads. The CY3B lineup runs from Ø6 mm up to Ø63 mm - the two largest bores (Ø50, Ø63) aren't offered in the CY1L or RMTL series, and correspond to the highest magnetic holding force ratings in the range (1471 N and 2256 N respectively).
• No lubrication required. Like the rest of the series, CY3B runs oil-free, which keeps maintenance intervals simple and avoids oil contamination on clean production lines.
• Mounting flexibility, with one condition worth knowing up front. The CY3B can be mounted horizontally, at an incline, or vertically. For vertical mounting, mid-stroke stops cannot be achieved through pneumatic circuit control alone - worth factoring into the design if the application needs the slider to hold position partway through the stroke while mounted vertically.

 

• What is the CY3B cylinder?

A magnetic coupling rodless cylinder that uses a ball bearing slider for guidance. The piston and slider connect through magnetic force with no mechanical rod, and the ball bearing structure keeps running friction low across extended duty cycles.

 

• How is CY3B different from RMTL or CY1L?

The guide structure is the key difference. RMTL uses a double guide rod built for side-load stability; CY1L integrates a sliding guide to minimize component count on long strokes; CY3B uses a ball bearing slider, aimed at applications with heavier loads or high-frequency cycling where low friction matters most.

 

• Can CY3B be mounted vertically?

Yes - horizontal, inclined and vertical mounting are all supported. One condition to note: when mounted vertically, mid-stroke stops cannot be achieved through pneumatic circuit control alone, so this should be factored into the application design if intermediate stopping is required.

 

• What's the maximum customizable stroke?

It depends on bore size, ranging from 300 mm on the Ø6 bore up to 5000 mm on the Ø63 bore. See the stroke table above for the full breakdown by bore.

 

• Does CY3B require lubrication?

No - it runs oil-free, which simplifies maintenance and avoids oil contamination in clean production environments.

 

 

 

 

Operating fluid	Air
Proof pressure	1.05 MPa
Maximum operating pressure	0.7 MPa
Minimum operating pressure	Refer to the minimum operating pressure chart
Ambient and fluid temperature	-10 to 60°C
Piston speed	50 to 500 mm/s
Cushion	Rubber cushioning at both ends
Lubrication	Non-lube
Stroke length tolerance
Mounting orientation	Horizontal, inclined, vertical (Note)
Mounting nuts (2 pieces)	Standard equipment (accessories)

Note: In vertical mounting applications, intermediate stopping cannot be achieved via the pneumatic circuit.

 

Note 1) For strokes exceeding 2000 mm, the long-stroke specification (XB11) applies.
Note 2) As the stroke increases, the amount of cylinder barrel sag also increases; therefore, please pay attention to the configuration of connecting components and the associated clearances.

 

No.	Name	Material		Remarks
1	Cylinder Body (Main Body)	Aluminum alloy		Hard Anodizing
2	End Cap	Φ6,φ10	brass	Electroless Nickel Plating
		Φ15~φ63	Stainless steel
3	Base Plate	Aluminum alloy		Diameters Ø20 to Ø40 only
4	Cylinder Barrel	Stainless steel
5	Piston	Φ6~φ15	brass	Φ6~φ15	Electroless nickel plating
		Φ20~φ63	Aluminum alloy	Φ20~φ63	Chromate
6	Shaft	Stainless steel
7	Piston Yoke	Roll steel		Zinc chromate
8	External Slide	Roll steel		Zinc chromate
9	Magnet A	Rare-earth magnets
10	Magnet B	Rare-earth magnets
11	Partition	Aluminum alloy		Black anodizing (excluding φ6)
12	Cushion Pad	Polyurethane rubber
13	Piston Nut	Carbon steel		None (for φ6–φ15)
14	C-type Retaining Ring	Carbon tool steel		Nickel-plated
15	Wear Ring A	Special resin
16	Wear Ring B	Special resin
17	Piston Seal	NBR
18	Dust Seal	Special resin		None (for φ6)
19	Cylinder Barrel Seal	NBR		Only φ6, φ10

Bore (mm)	Component Model	Contents
6	CY3B6-PS	The serial number mentioned above ⑮⑯⑰⑲
10	CY3B10-PS	The serial number mentioned above ⑮⑯⑰⑱⑲
15	CY3B15-PS	The serial number mentioned above⑮⑯⑰⑱
20	CY3B20-PS
25	CY3B25-PS
32	CY3B32-PS
40	CY3B40-PS
50	CY3B50-PS
63	CY3B63-PS

※ Seal components numbered 15 through 19 constitute a single set; order the seal components according to the specific model number based on the cylinder bore size.

 

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