The TBK610 is a heat transfer machine that prints full-colour designs onto blank phone cases using sublimation. It lets creators, repair shops and wholesalers produce custom cases in small runs without outsourcing. Digi4u supplies the TBK610 and the blanks and consumables around it.
Last updated: August 2026 ¡¤ Reviewed by the Digi4u repair team.
About this guide: based on hands-on bench testing and repair experience; confirm official specifications with the supplier before ordering.
How heat transfer case printing works
Sublimation printing transfers a design from printed transfer paper onto a coated blank case using heat and pressure. The design is printed in reverse, the case is placed in the TBK610, and the heat presses the ink into the case surface. When the case cools, the colour is part of the surface rather than a layer on top.
That is why custom case printing works for small runs: each case is a single machine cycle, so there is no minimum order from a factory.
What the TBK610 includes
| Item | Purpose |
|---|---|
| Heat press unit | Applies heat and pressure for the transfer |
| Temperature and time control | Matches the blank case specification |
| Blank case compatibility | Works with sublimation-coated blanks |
| Consumable workflow | Transfer paper, ink and coated blanks |
The machine itself does not print the design. A printer with sublimation ink creates the transfer paper, and the TBK610 completes the transfer onto the case.
The printing workflow
- Design the artwork and print it in reverse with sublimation ink.
- Trim the transfer paper to the case area.
- Tape the paper onto the coated blank case.
- Run the heat press cycle at the temperature and time for the blank.
- Cool the case, remove the paper and check the transfer.
The temperature and time settings come from the blank manufacturer’s guidance, and the first test prints should use a spare case before a full run.
Who the TBK610 suits
Creators can print limited runs for a shop or a launch. Repair shops can add custom cases as a second line alongside repairs. Wholesalers can produce branded stock in-house instead of waiting on factory minimums. Each use case shares the same skill: colour management and clean sublimation setup.
What to check before buying
Confirm the blank case compatibility, the sublimation printer you already own, and the consumable supply. The machine is only part of the line: without sublimation ink, transfer paper and coated blanks, the press has nothing to transfer.
What makes a clean transfer
A clean sublimation transfer comes down to four variables: the print quality of the transfer paper, the tape that holds it flat, the press temperature and the press time. If any of the four is off, the case comes out faded, blurred or with white edges where the paper lifted.
The print quality is the most overlooked step. Sublimation ink must be printed in reverse on paper designed for sublimation, and a standard inkjet print will not transfer. The tape matters because the paper must stay perfectly flat against the curved case during the press, and any lift becomes a blurry band.
The temperature and time come from the blank case manufacturer’s guidance, and the first run should always be a test case. A settings log for each blank type turns the machine from a trial-and-error tool into a repeatable service, which is what makes custom printing profitable.
Run a test case before every design and keep a settings log per blank type. The case printing blanks and tools at Digi4u support the line, and the test case protects the customer’s design and the machine’s reputation.
Related guides: the screen polisher guide covers the finishing side of refurbishing, and the screen grades guide covers part choice.
Digi4u workshop notes
Our bench rule: test on a spare blank before the customer’s design. One test print saves the only case that matters, and the settings come from the blank, not the machine.
¡ª Digi4u repair team (bench notes)
Conclusion
The TBK610 brings custom case printing in-house with a heat transfer workflow for small runs. Browse the case and cover range at Digi4u.
Frequently Asked Questions
What can the TBK610 do?
It transfers full-colour designs onto sublimation-coated blank phone cases using heat and pressure.
Do I need a special printer?
Yes. A printer using sublimation ink produces the transfer paper; the TBK610 then presses the design onto the case.
Is it worth it for one-off cases?
For small runs, yes, because each case is one machine cycle with no factory minimum order.
