Hotronix® Auto Open Clam Heat Press

You won't find a more user-friendly heat press.

This heat press has a patented state-of-the-art Auto Open feature which enables you to multi-task while helping to avoid over-application and ruined garments.

With its clamshell design, this heat press is a great space saver in the shop. Now, save even more space and add Threadability™ with the Hotronix® Heat Press Caddie™

New for 2014!
The Auto Clam now features quick-change platens, allowing you to change the lower platen without any tools. Simply flip open the new quick-change latch, remove the platen, replace it with another size, and flip the latch closed. One set of platens can be interchanged between all MAXX® and Hotronix® clamshell heat presses.

Available in three sizes:
11" x 15" $934.00
16" x 16" $1320.00
16" x 20" $1595.00

November Special
Purchase any Hotronix® or MAXX® shirt press and receive $100 in free product; or purchase a Hotronix or MAXX cap press and receive $50 in free product.

Online Purchases: Stahls' ID Customer Service will contact you regarding your free product after your order has been placed.

Offer expires November 30th, 2014.

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Technical Specifications


  • Patented Magnetic Auto Open Feature.
  • Digital time, temperature, and pressure controls.
  • 3/4" thick non-stick coated upper platen.
  • Patented, Magnetic Assist Lock Down.
  • Wide opening for easy layout.
  • Interchangeable lower platens (optional).
  • Platinum RTD heat sensor.
  • Cast-in tubular heating element every 2" to ensure the absence of cold spots.
  • Space-saving clamshell design.
  • Over-center pressure adjustment.
  • UL/ULC/CE/ROHS approved.
  • Temp. range 205° - 420°F.
  • °F or °C available.

Operators Manual

Download the Hotronix Auto Clam Operators Manual.


  • Opens automatically.
  • No operator fatigue.
  • Easy to operate.
  • Digital read-outs.

Hotronix Premier Warranty

  • Lifetime Warranty on Heating Element
  • 5 yr on Framework
  • 2 yr on Circuit board
  • 1 yr Parts/labor

Print these 6 Heat Press Care Tipsand keep them close to your heat press to help keep it in shape.

Questions & Answers

Everyone has questions. Tell us yours.

Sometimes when I lock down my Auto Clam it releases too soon. Any suggestions?
If you can't get your heat press to stay closed, there may be too much pressure or the round magnet on the adjustment arm may need cleaning. Check with your manufacturer.
After being on and not used for several hours, my Auto Clam shuts off. Is this a feature that can be changed?
The Auto Clam has a manual safety feature with an automatic shut off if the machine is idle for two or more hours. This feature cannot be disabled. Refer to your owner's manual for information on how to reset.
How can I check the pressure setting on my heat press?
Lower the upper platen and lock it into place. Heat presses with a pressure readout will display the setting on the front panel.
The handle on my Auto Clam heat press only releases one or two inches, then stops and is very hard to lift. How can I get it to work normally?
The gas springs may be loose. A replacement can be ordered from Hotronix®.
What voltage are the Hotronix® heat presses sold in?
Hotronix Heat Presses are available in both 110V or 220V.

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Educational videos

Close Up: Hotronix® Auto Open Clam Heat Press 10:54

The Stahls' Hotronix® Auto Open Clam Heat Press allows businesses to print items faster and more accurately. This "Close Up" tour of the heat press explains the differences between this machine and others in its class, bringing to light that all heat presses are not created equal. After watching you'll understand why this heat press is a wise investment for your business.

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