Airtac MKJ Adjustable Cylinder MKJ25X15-20
The AirTAC Airtac MKJ Adjustable Cylinder MKJ25X15-20 is a genuine MK multi-mount cylinder (adjustable stroke), 25 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 245.4 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)
- Bore25 mm
- Push thrust @0.5 MPa245.4 N
- Operating pressure0.15 - 1.0 MPa (22 - 145 psi)
- Port sizeM5x0.8
- CushionBumper
- MagnetWithout magnet
- 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 MKJ25X15-20
The MKJ25X15-20 is a 25 mm bore adjustable-stroke multi-mount cylinder with a 15 mm base stroke plus a 20 mm adjustable range, double acting for powered forward and return strokes. Its square body fixes from six directions - front, back, left, right, top and bottom - and cylinders can sit side by side to save space, with magnetic-switch slots around the body. The cushion is a bumper, and at 0.5 MPa this bore produces a theoretical push force of 245.4 N.
This is a genuine AirTAC part. It belongs to the no-rotating MK family, where a plate, bushing and fixed rod stop the rod from turning; the MD family is the standard type that permits rotation. As the SKU shows no S suffix, this model is supplied without a magnetic piston. Overall dimensions vary with the stroke setting, so confirm sizing and detailed dimensions from the datasheet, available on request.
Airtac MKJ Adjustable Cylinder MKJ25X15-20 Technical Specifications
| Model | Airtac MKJ Adjustable Cylinder MKJ25X15-20 |
|---|---|
| Type | Multi-mount cylinder, adjustable stroke |
| Series | MK (no-rotating) |
| Bore | 25 mm |
| Push thrust @0.5 MPa | 245.4 N |
| Port size | M5x0.8 (PT thread) |
| Magnet | Without magnet |
| 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
The 25 mm bore gives about 245.4 N of theoretical push at 0.5 MPa; choose a different bore in the range if that thrust does not match the load. MKJ combines an adjustable stroke with no-rotating behaviour, which the standard MD family does not provide. This unit is double acting, with a 15 mm stroke and a 20 mm adjustable range still inside the 60 mm maximum for this bore, though the short body cover means over-long strokes should be avoided. This SKU has no magnet; select the S version if switch detection is needed. Ports are M5x0.8 with PT thread, or G as an option. Side-load capacity is not stated here - confirm from the datasheet or ask us.
Applications
Indexing and locating
Index or locate parts between fixed positions on a small assembly machine. The 20 mm adjustable range covers setup variation between products, and the no-rotating rod holds the locator in line.
Small-parts ejecting
Push small finished parts out of a nest or die. Six-direction fixing lets the cylinder mount under or beside the nest, the 245.4 N push at 0.5 MPa clears the part, and the bumper softens retraction.
Stopper on a transfer line
Stop pallets or parts at a station on a compact transfer line. Units mount side by side for multi-station layouts, and the adjustable stroke lets maintenance fine-tune the stop position without re-piping.
FAQ
How do I choose between the -10 and -20 versions of this cylinder?
Both share the same 25 mm bore, 15 mm base stroke and 245.4 N theoretical push at 0.5 MPa; the difference is the adjustable range. The -10 adds up to 10 mm on top of the base stroke, while the -20 adds up to 20 mm, so choose the -20 if your setup needs more trimming travel.
Can I get position feedback from this cylinder?
The body has magnetic-switch slots, but this SKU carries no S suffix, so it is supplied without a magnetic piston and the magnet must be selected separately. For switch mounting options and exact dimensions at your stroke setting, confirm from the datasheet or contact us.