The Columbia Model 288 is an impact marking cylinder designed for robust and reliable performance. Here are the key features:

1. Design: The model is built as a rugged pneumatic tool with various pockets at the rod end for stamp character inserts, allowing it to deliver powerful impact blows.
2. Impact Force: Capable of delivering a substantial impact force of up to 3 tons at 80 psi (pounds per square inch). This makes it suitable for various industrial marking applications.
3. Shock Absorption: The cylinder is equipped with patented shock-absorbing bumpers at both ends of the stroke. This feature is designed to prevent damage to the marker during the forward stroke and reduce shock during the return stroke.
4. Dependability: The Model 88 is highlighted as a dependable marker, offering reliable performance while maintaining a low investment cost.
5. Rod Action: The rod features a spring return action, enhancing efficiency and contributing to a quick return stroke.
6. Keyed Non-Rotating Rod: The rod is designed as keyed and non-rotating, ensuring precision and accuracy in the marking process.
7. Stroke Length: The model offers 2.5 to 6” inches of stroke, providing versatility for different marking requirements.
8. Compressed Air Requirement: The model offers 2.5 to 6” inches of stroke, providing versatility for different marking requirements.
9. Integrated Return Sensor: CMT offers integrated sensor option to signal that the marker has returned to the retracted position.

Double acting air impact markers offer extended approach stroke. THe motion is shown above.

Mounting Styles =

Standard angle bracket

Reverse angle bracket.

Sub-plate mount

Environment =

Industrial

Extremem Debris

Submersible

Rod Styles =

Muti-character OA for CMG groove type

Muti-character OAS38 for CMG groove type

Single character OB for CM8X round insert.

Single character OY for CM8Y round insert.

Stroke Length =

2.5"

4.0"

6.0"

End Configurations =

Standard end port

Side port for installation with restricted space

24VDC Return Sensor

110VAC Return Sensor

Compressed Air Supply =

Lubricated

Dry

Stamp Capacities Rod Style “B” =

(1) Pc CM8X round insert can mark up to a 1/4” character.

Stamp Capacities Rod Style “A” =

(4) Pc’s 1/16” Char. of CMG06 Stamp Inserts. (2) Pc’s 1/8” Char. of CMG13 Stamp Inserts

Stamp Capacities Rod Style “AS38” =

(6) Pc’s 1/16” Char. of CMG06 Stamp Inserts. (3) Pc’s 1/8” Char. of CMG13 Stamp Inserts

Stamp Capacities Rod Style “Y” =

(1) Pc CM8Y round insert can mark larger character and longer marking legends. Warning unit may not have force required to indent larger character and legends depending on the material being marked. Please review parameters with marking pressure chart.

Model 288 rod style B

1. Stamp - wearable part
2. Rod/Stamp Holder
3. Spring Clip - Retaining clip
4. Keyway - maintains orientation of stamp(s)
5. Front Nut - do not remove, will void warranty
6. Advance air port and rear end cap - remove for seal replacement, shown with return position sensor upgrade
7. Sleeve
8. Return air port
9. Mounting Bracket - do not remove, will void warranty

Select options from the chart to build the complete part number.

Selections:

• Mounting bracket
• Environment
• Rod Style/Type Holder
• End configuration
• Air Supply

The size of the model 288 varies with the stroke of marker. The addditional stroke length will allow the marker to reach farther to the workpieces, while at the same time extend the length of the impact marker sleeve.

Drawings for all the models. CAD files formats of many different configurations.

Technical Specifications: