CBA2 Series End Lock Cylinder (Standard, Heat Resistant)

Model Number Notation

Model Number Notation

CBA2 Series End Lock Cylinder Specifications

CBA2 Series external appearance

CBA2 Series (air cushion) symbol

• *10.05 MPa except for locking parts.
• *2No freezing.

Lock Specifications

Rod Boot Material

• Rod boot material (J): nylon tarpaulin, maximum ambient temperature 70°C
• Rod boot material (K): heat-resistant tarpaulin, maximum ambient temperature 110°C*

*Maximum ambient temperature for the rod boot unit.

Diagram

Diagram: CBA2 Series with head lock

Diagram: non-locking type manual release (suffix N)

Diagram: locking type manual release (suffix L)

Components

*Do not disassemble the trunnion type. See the manufacturer's catalog for details.

Drawing

Basic type

The dimensions are the same regardless of whether the lock position is head end, rod end or double end.

(Units: mm)

Dimensional drawings: with head-end lock, CBA2B□-□-HN

(Units: mm)

Dimensional drawings: with rod-end lock, CBA2B□-□-RN

(Units: mm)

Dimensional drawings: with double-end lock, CBA2B□-□-WN

 

(Units: mm)

 

Dimensional drawings: with rod boot

 

(Units: mm)

 

Tube inner diameter (mm)	Stroke range (mm)	d	e	f	h	L	ZZ
40	20 to 500	56	43	11.2	59	1/4 stroke	154
50	20 to 600	64	52	11.2	66	1/4 stroke	167
63	20 to 600	64	52	11.2	66	1/4 stroke	178
80	20 to 750	76	65	12.5	80	1/4 stroke	213
100	20 to 750	76	65	14	81	1/4 stroke	224

(Units: mm)

*The dimensions for each mounting type and the dimensions of accessories (options) are the same as the standard type double acting single rod model. Refer to the manufacturer's catalog.

Precautions

Circuit diagram: head-end lock (left) / rod-end lock (right)

• *Before using, please refer to the "Safety Precautions," the "Actuator Precautions," and the "Auto Switch Precautions."
• *Use the recommended pneumatic circuit. It is required to engage and disengage the locks correctly.

Usage Precautions

• *Do not use a 3-position solenoid valve. Avoid using this cylinder in combination with a 3-position solenoid valve (particularly the closed center metal seal type). If air pressure becomes sealed inside the port on the side that contains the lock mechanism, the lock will not engage. Even if the lock engages at first, the air that leaks from the solenoid valve could enter the cylinder and cause the lock to disengage over time.
• *Back pressure is required when releasing the lock. Before starting, make sure that air is supplied to the side that is not equipped with a lock mechanism as shown in the diagram above (or the side on which the piston rod is unlocked, if both sides are equipped with a lock). Otherwise, the lock may not disengage. (Refer to manufacturer's catalog for details on the lock release.)
• *Release the lock when mounting or adjusting the cylinder. The lock may not disengage if the cylinder is installed with its lock engaged.
• *Operate with a load ratio of 50% or less. The lock may not disengage or may become damaged if the load exceeds 50%.
• *Do not operate multiple synchronized cylinders. Avoid applications in which 2 or more end lock cylinders are synchronized to move 1 workpiece. Otherwise, one of the cylinder locks may not be disengaged when required.
• *Use a speed controller with meter-out control. If operated under meter-in control, the lock may not disengage.
• *Be sure to operate completely to the cylinder stroke end on the side with the lock. The lock may not engage or disengage if the piston in the cylinder has not reached the stroke end.

Other

• *The minimum stroke for mounting varies with the auto switch type and cylinder mounting type. In particular, the center trunnion type requires careful attention.
• *Product images are representative models.
• *See the SMC catalog for information other than that detailed above.