Airtac MKD Multi-position Clamping Cylinder MKD20X25
The AirTAC Airtac MKD Multi-position Clamping Cylinder MKD20X25 is a genuine MK multi-mount cylinder (double rod), 20 mm bore. Its compact square body fixes from six directions and mounts side by side to save space. It delivers about 157.1 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, double rod
- SeriesMK (no-rotating)
- Bore20 mm
- Push thrust @0.5 MPa157.1 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 MKD Multi-position Clamping Cylinder MKD20X25
The AirTAC MK series is a compact square-body multi-mount cylinder that fixes from six directions - front, back, left, right, top and bottom - and can be mounted side by side to save space, with magnetic-switch slots machined around the body. The MKD20X25 is the double-rod, double-acting version: rods extend from both ends, so a tooling plate or paired loads can be driven from either side within a 25 mm stroke. At 0.5 MPa a 20 mm bore delivers 157.1 N on a plain push side and 131.9 N on the rod side; with rods on both ends, confirm per-side output from the datasheet. Cushioning is a bumper.
This is a genuine AirTAC part distributed for the US market. MK is the no-rotating family: a fixed rod and no-rotating plate stop the piston rod from turning, unlike the standard MD family. As the SKU shows, the MKD20X25 carries no magnet; choose the S suffix if you need magnetic switch sensing. Medium is air filtered to 40 um, proof pressure is 1.5 MPa, and temperature range is -20 to 70 C (0 to 150 C only with the optional high-temperature seal material). Overall dimensions and side-load limits are per the datasheet - we confirm sizing on request.
Airtac MKD Multi-position Clamping Cylinder MKD20X25 Technical Specifications
| Model | Airtac MKD Multi-position Clamping Cylinder MKD20X25 |
|---|---|
| Type | Multi-mount cylinder, double rod |
| Series | MK (no-rotating) |
| Bore | 20 mm |
| Push thrust @0.5 MPa | 157.1 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
Choose the 20 mm bore for roughly 157 N push (131.9 N rod side) at 0.5 MPa, or step up to 25 or 32 mm for more force. MKD is the double-rod no-rotating choice when rotation must be prevented and you need output at both ends; the MD family allows rotation, while MK, MKD, MSK, MTK and MKJ prevent it. Double acting powers the stroke both ways, single acting push (MSK) or pull (MTK) returns by spring, and MKJ adds a 10, 20 or 30 mm adjustable range. The 25 mm stroke sits well inside the 60 mm limit for bore 20 - the short covers of a compact body caution against an over-long stroke. This SKU has no magnet; add S for one. Port thread is PT; G is available.
Applications
Two-sided fixture clamping
Clamp small parts in a drilling or assembly fixture from both sides of the jig; the no-rotating double rod keeps clamp pads facing square to the part.
Indexing stopper
Act as a stopper or indexing pin on a conveyor line, extending and retracting under load without the rod twisting out of alignment.
Pick-and-place plate
Drive a small pick-and-place plate up and down; side-by-side mounting lets two cylinders work in a tight footprint over the same station.
FAQ
What does MKD20X25 mean?
MKD is the no-rotating double-rod variant of the MK multi-mount family: 20 mm bore, 25 mm stroke, double acting. No trailing S means the cylinder is built without a magnet, and no trailing G means PT port threads (M5x0.8 on this bore).
Can I use a long stroke on this compact body?
For bore 20 the stroke table runs to 60 mm, but the short covers of a multi-mount cylinder caution against an over-long stroke on an exposed rod. Side-load limits and exact dimensions per stroke come from the datasheet - ask us to confirm them for your layout.