Best Heavy-Duty Time Clocks
About heavy-duty time clocks
Heavy-duty time clocks are for those who want a machine to stand up to constant use and/or harsher environments. Each machine is constructed with durable plastic or metal, and built to withstand higher demanding applications. All machines should be sheltered from weather.
Have questions? Please reach out, we'll be happy to help.

Compumatic TR440A
Heavy Duty, Top-Loading Time Clock, Analog Face

Compumatic TR440D
Heavy Duty, Top-Loading Time Clock, Digital Face

Compumatic MP550
Heavy Duty Time Clock and Date Stamp

Acroprint ES900
Side-Printing Time Clock, Date Stamp & Number Stamp

Acroprint 150AR3
Heavy Duty Time Clock: Prints Day, Hour, Minute (M 1 54)

Acroprint 150NR4
Heavy Duty Time Clock: Prints Month, Date, Hour, Minute (Oct 19 1 54)

Acroprint 150QR4
Heavy Duty Time Clock: Prints Month, Date, Hour (0-23), Minute (Oct 19 13 54)

Acroprint 150RR4
Heavy Duty Time Clock: Prints Month, Date, Hour (0-23), 100ths (Oct 19 13 90)

Pyramid 3700
Heavy Duty Time Clock and Date Stamp

Lathem 2100HD
Heavy Duty Thermal Print Time Clock

Lathem LT5000
Heavy Duty Multi-Function Time and Date Stamp

Pyramid 5000HD
Heavy Duty Calculating Time Clock, 100 Employees

Amano NS-5100
Heavy Duty Time, Date, Number Stamp

Amano MJR-7000
Heavy Duty Calculating Time Clock, up to 100 Employees

Amano MJR-7000EZ
Heavy Duty Calculating Time Clock, up to 100 Employees with 3 Shifts

Amao MJR-8000N
Heavy Duty Calculating Time Clock, up to 250 Employees
More about heavy-duty time clocks
Just as it implies, heavy-duty clocks are built for heavy use and harsher environments.
Best used in offices that require constant use, or even farms and factories. Just make sure they covered from the rain, and have AC power available.
The side-printing clocks can use any generic time card. The top-loading clocks require cards designed for the machine.
They may be tough, but doubtful they could withstand a sledge hammer ;)
Lathem
Lathem Time offers the 2100HD. It comes in a durable case and uses a thermal process to print on time cards. So only Lathem's cards will work on this clock. We really like the product.
If you are looking for the old Lathem 2000 or 4000 series clocks, they don't make them anymore. The 2100HD is now their replacement.
Pyramid Time Systems
Their 3700 model uses the same internal components as the Pyramid 3500. The difference is the metal casing. They've sold this product for years, but still seems popular.
Acroprint
The ES900 is a more durable version of the Acroprint ES700. This also seems to sell very well.
If you are looking for the old 125 and 150 models, there have been availability issues. It's also not certain if Acroprint will continue manufacturing them. If they do, we'll add them to the list.
Compumatic
Last but no least, the Compumatic top-loading clocks are very tough. Built to last years. They are also backed by a company who will help with any questions.