Airtac MKJ Adjustable Cylinder MKJ32X50-40S
The AirTAC Airtac MKJ Adjustable Cylinder MKJ32X50-40S is a genuine MK multi-mount cylinder (adjustable stroke), 32 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 402.1 N of push force at 0.5 MPa. A bumper cushions the impact. As an MK unit a fixed rod stops the piston rod rotating.
- TypeMulti-mount, adjustable stroke
- SeriesMK (no-rotating)
- Bore32 mm
- Push thrust @0.5 MPa402.1 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port size1/8"
- CushionBumper
- MagnetWith magnet (sensor-ready)
- ThreadPT
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac MKJ Adjustable Cylinder MKJ32X50-40S
The MKJ32X50-40S is an AirTAC multi-mount cylinder with a 32 mm bore, a 50 mm stroke and a 40 mm adjustable-stroke range. As a double-acting, no-rotating cylinder it delivers a theoretical push force of 402.1 N at 0.5 MPa (345.6 N on the pull side), and its cushion is a bumper that absorbs end-of-travel impact. The compact square body fixes from 6 directions - front, back, left, right, top and bottom - so units mount side by side to save space, with magnetic-switch slots around the body.
This is a genuine AirTAC part from the MK family: a fixed rod and no-rotating plate stop the piston rod from turning, so tooling stays square to the body. The trailing S in the SKU means this cylinder comes WITH a magnet for position sensing; a matching SKU without the S would not. It runs on air filtered to 40 um at -20 to 70 C, with a proof pressure of 1.5 MPa (215 psi). We confirm dimensions and sizing from the datasheet on request.
Airtac MKJ Adjustable Cylinder MKJ32X50-40S Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ32X50-40S |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 32 mm |
| Push thrust @0.5 MPa | 402.1 N |
| Port size | 1/8" (PT thread) |
| Magnet | With magnet (S) |
| Fluid | Air, filtered to 40 um |
|---|---|
| Operating pressure | 0.15 - 1.0 MPa (22 - 145 psi) |
| Proof pressure | 1.5 MPa (215 psi) |
| Temperature | -20 to 70 C |
| Speed range | 30 - 500 mm/s |
| Cushion | Bumper |
| Mounting | Fix from 6 directions; mountable side by side |
Specifications follow the official AirTAC MD/MK multi-mount data. The front cover and piston are short, so avoid an over-long stroke. An optional high-temperature seal material extends the range to 0 to 150 C. Overall dimensions vary per stroke and allowable side-load is published as curves — ask us and we confirm from the datasheet.
How to choose
Choose the bore for thrust: at 0.5 MPa this 32 mm bore gives 402.1 N theoretical push (345.6 N pull) in double-acting service. Pick MK over MD when the rod must not rotate; MD is the standard version that allows rotation. Acting options across the MK range include double (MK), single push (MSK), single pull (MTK), double rod (MKD) and adjustable stroke (MKJ, like this model). The stroke must fit the bore's table - bore 32 double acting goes up to 60 mm - and this SKU adds a 40 mm adjustable range on top. The trailing S means a magnet is included; order without the S if you do not need one, and choose a PT (blank) or G thread. The short covers caution against an over-long stroke, and allowable side load should be confirmed from the datasheet - ask us.
Applications
Small-parts clamp
Clamp small parts in a tight fixture where cylinders mount side by side, and the no-rotating plate keeps the clamp face aligned with the part.
Indexing fixture
Advance a fixture to each indexed station with the adjustable stroke dialling in the final position, while the magnet enables mid-stroke detection.
Lateral transfer
Slide small parts sideways between stations in compact automation, where the 6-direction body fix and side-by-side mounting save machine space.
FAQ
How do I choose between the MKJ, MK, MSK, MTK and MKD variants?
All are MK no-rotating cylinders. MK is the standard double-acting version, MKJ (this model) adds an adjustable range on top of the base stroke, MKD is double rod, MSK is single-acting push and MTK is single-acting pull. Match the acting type to the job, size the bore for thrust (402.1 N push at 0.5 MPa for this 32 mm bore, 345.6 N pull), and keep the stroke within the bore's table.
Can I use a long stroke with this multi-mount body?
Be careful: the short covers of the multi-mount design caution against an over-long stroke, so keep the stroke within the bore's table - bore 32 double acting goes up to 60 mm. For exact dimensions for your stroke and the allowable side load, confirm from the datasheet or ask us; we will supply the figures.