Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20
The AirTAC Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20 is a genuine double-acting aluminum-barrel mini cylinder with a Ø20mm bore, a 200mm nominal stroke and a rear adjustable-stroke stopper — trim up to 20mm for a usable window of 180–200mm. Adjustable air cushion (both ends).
- BoreØ20 mm
- Stroke200 mm
- Adjustable180–200 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM8×1.25
- CushionAdjustable air cushion (both ends)
- 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 MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20
The AirTAC MBLCJ20X200-20 is a compact, double-acting mini cylinder featuring a riveted aluminum barrel and an 8mm hard-chrome plated carbon-steel rod. It integrates a rear travel stopper that allows you to trim up to 20mm of motion, creating a precise usable stroke window of 180-200mm. Tunable air cushions at both ends absorb end-cap impact, providing superior deceleration compared to the fixed rubber bumper found on the base MBLJ series.
Delivering 157N of push force at 0.5 MPa, this 20mm bore unit is tailored for lighter-duty machinery. Because this specific SKU lacks the -S magnet suffix, it cannot accept a CMSG, DMSG, or EMSG position sensor. The overall length equals A plus 2 times the stroke plus the 20mm adjuster, meaning the rear stopper physically sets the travel end but does not lock or hold the load in place without live air pressure.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20 Technical Specifications
| Model | Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20 |
|---|---|
| Series | MBL aluminum-barrel mini round cylinder (adjustable stroke) |
| Bore size | Ø20 mm |
| Nominal stroke | 200 mm |
| Adjustable window | 180–200 mm (trim 20 mm) |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M8×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable air cushion (both ends) |
| Max standard stroke | Up to 300 mm |
The rear stopper sets the end position — it is a travel stop, not a lock. Overall length = A + 2 × stroke + adjustable stroke. MBLJ/MBLCJ mounting is Basic / FA / LB only (no SDB, no back-cover code). Thread options: PT / G / NPT.
Theoretical Output Force (Ø20mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 157 N | 132 N |
| 0.7 MPa | 220 N | — |
| Max (@1.0 MPa) | 32 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a margin.
Model Code: Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20
| MBLCJ | MBLCJ aluminum-barrel adjustable-stroke mini cylinder with adjustable cushion. |
|---|---|
| 20 | Bore size in mm. |
| ×200 | Nominal stroke length in mm. |
| -20 | Adjustable-stroke amount (mm you can trim at the rear). |
| S | Optional built-in magnet for a CMSG/DMSG/EMSG sensor switch. |
Related: MBLJ (adjustable stroke, fixed bumper), MBL (fixed stroke), MBLD (double rod).
Where the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20 Is Used
PCB Drill Tool Changer
Drives a lightweight tool carousel in a PCB drilling station. The 157N push force at 0.5 MPa easily shifts the carrier, while the 180-200mm stroke window allows exact positioning over the spindle without hard impacts.
Label Applicator Tamp Head
Extends a label tamping head in a packaging line. The adjustable air cushion decelerates the 200mm stroke smoothly, preventing label skewing, while the rear stopper fine-tunes the exact tamp depth.
Textile Yarn Guide
Traverses a yarn guide bar across a winding machine. The compact 20mm bore fits tight loom spaces, and the 8mm chrome rod withstands continuous lateral movement when supported by an external guide.
Is the Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20 the Right Cylinder?
When sizing this actuator, consider stepping down to a 12mm bore for lighter loads, or up to a 25mm bore which yields 245N of push force at 0.5 MPa if your payload requires more thrust. Choose the MBLCJ over the MBLJ when your cycle speeds demand screw-tunable end-of-stroke deceleration rather than a fixed bumper. Select the MBLC variant instead if your application requires a fixed, non-adjustable stroke length.
Remember that the rear stroke adjuster is a travel stop, not a mechanical lock; the cylinder will drift without air pressure, so external locking is needed for fail-safe holding. Mounting is limited to Basic, FA flange, or LB foot brackets, as the MBLCJ series does not support SDB pivot or back-cover configurations. For an exact replacement, match the 20mm bore, 200mm stroke, 20mm adjust code, G1/8 PT thread, and the absence of a magnet. Given the 200mm stroke on an 8mm rod, an external guide is highly recommended to prevent rod bending and premature seal wear.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Adjustable window fits your end position
- ✓ Adjuster is a travel stop, not a lock
- ✓ Magnet (S) for sensors?
- ✓ Side load — add a guide on long strokes
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Set the rear stopper for the end position (a travel stop, not a lock).
- check Avoid side load; add an external guide on long strokes.
- check Mounting: Basic / FA flange / LB foot (no SDB, no back-cover code).
- check Installation by qualified personnel per AirTAC docs.
Airtac MBLCJ Adjustable Mini Cylinder MBLCJ20X200-20 FAQ
At 0.5 MPa, this 20mm bore cylinder provides 157N of push force and 132N of pull force. At 0.7 MPa, the push force increases to 220N. The maximum theoretical force is 32 kgf at 1.0 MPa operating pressure.
The rear adjuster is a mechanical travel stop that limits the stroke window from 180 to 200mm. The air cushion is a screw-tunable valve that decelerates the piston near the end caps. Neither holds the load pneumatically; the cylinder drifts without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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