Acroprint stamp and platen assembly
We would be lying if we said it was easy, but if your are mechanically inclined,
You can probably do this. If not, put it in a box and we'll finish the work for $75 + shipping.

Call us, we can help! The above model is the 125. There are no stamp parts left for it.
You must have the model 150, which looks just like it, but has no push button on top.
That's the one this part is for.
Acroprint 150 Stamp Hammer Assembly – Replacement Part for Mechanical Time Clock
The Acroprint 150 stamp hammer assembly is a direct replacement part for Acroprint Model 150 mechanical punch clocks. These time clocks remain widely used because of their heavy-duty construction, and replacing worn stamping components is often the fastest way to restore clear, consistent time card printing.
The hammer assembly presses the time and date imprint onto the time card during operation. After years of use, the rubber platen or mechanical components can wear down, causing light or uneven impressions. Installing a new stamp hammer assembly restores proper stamping pressure and helps maintain accurate payroll records. This part is designed specifically for the Model 150 series and does not fit Model 125 clocks.
Compatibility
- Acroprint Model 150 Mechanical Time Clock
- All Series 150 Mechanical Punch Clock Variants
Maintain Legacy Equipment
Many businesses continue operating mechanical Acroprint clocks because replacement parts are available and repairs are straightforward. Replacing worn stamping components extends equipment life and avoids the cost of switching to a new system.
FAQ
What causes faint stamping on time cards?
A worn hammer assembly or platen is one of the most common causes.
Is this a common repair item?
Yes. Stamp hammer assemblies are regularly replaced on high-use mechanical clocks.
Should I replace other parts at the same time?
Many users replace ribbons at the same time to ensure optimal print clarity.
Customers also purchase: Acroprint Ribbons | Time Clock Parts