GeoKnight DK20A Auto Release 16×20 Heat Press – Digital Clamshell with Pop-Up & Hover Feature
GeoKnight
The GeoKnight DK20A Auto-Release 16×20 Clamshell is a professional digital clamshell press with a 16″ × 20″ platen that opens up and away for easy loading. Made in the USA for HTV, DTF, sublimation and screen-print transfers, with even, edge-to-edge heat and the Digital Knight reliability shops count on.
$1,650.00
Description
The auto-release “Pop-Up” version of GeoKnight’s 16″ × 20″ clamshell — it opens by itself at the end of the timer (no air compressor needed) and adds the HOVER feature for curing. All the even heat and heavy pressure of the DK series, now hands-free.
Why Shops Choose the DK20A
Auto-Release “Pop-Up”
At the end of the digital timing cycle the press opens automatically — semi-automatic production without an air compressor. Walk away without scorching a garment.
HOVER Feature
Lower the handle without fully clamping and the press hovers over the work for curing, then releases automatically at the end of the cycle.
SuperCoil-Microwinding™ Heat
Heater windings packed tightly across the Teflon-coated ¾″ platen deliver even, edge-to-edge heat with fast recovery and quick heat-up — no cold spots.
Digital Control That Repeats
Fully digital temperature (32–600°F), automatic timer plus a dual pre-press timer, a digital pressure bar graph, programmable presets and a cycle counter keep results consistent across operators (±2°F, °F or °C).
All-Thread™ Loading
The All-Thread table design and narrow base let you drape garments fully around and under the platen, and interchangeable bottom tables size the press down for smaller items.
Heavy-Duty & Portable
Solid welded-steel framework and hardened high-strength pivot points stand up to production — yet at ~103 lbs the DK20 is far more portable than a swing-away.
Industry-Leading Warranty
Backed by a lifetime warranty on the heating element, a 3-year warranty on the heat-control electronics, and FREE lifetime tech support.
What You Get
See It In Action
The Technology Inside
Even Heat, Edge to Edge
SuperCoil-Microwinding™ technology winds the heater elements tightly throughout the entire platen, so transfers cure evenly from corner to corner with fast recovery between presses.
Extreme Pressure, Easy Action
Hardened pivot points and an over-center clamp deliver extreme high-pressure capability for demanding transfers, while the gas-spring lift makes opening effortless.
Made & Supported in the USA
Geo Knight builds and supports the Digital Knight line in Massachusetts — with genuine parts and FREE lifetime tech support behind every press.
What You Can Press
HTV & DTF
Apply heat transfer vinyl and DTF transfers to tees, totes and flat textiles with even, full-coverage pressure.
Sublimation & Transfers
Press dye-sublimation, plastisol screen-print transfers and foil with precise, repeatable time and temperature.
Light Production
Add the Pop-Up auto-release and twin-station upgrades to turn a manual clamshell into a semi-automatic, dual-station production machine.
GeoKnight DK Clamshell Family
| Model | Platen | Auto-Release | Best For |
|---|---|---|---|
| DK16 | 14″ × 16″ | — (manual) | Compact garment printing |
| DK16A | 14″ × 16″ | Pop-Up + HOVER | Compact, semi-auto |
| DK20 | 16″ × 20″ | — (manual) | Largest clamshell, full-size prints |
| DK20A | 16″ × 20″ | Pop-Up + HOVER | Largest, semi-auto light production |
Why Buy Your GeoKnight from River City Supply
✔ Authorized GeoKnight Dealer
A genuine, factory-fresh GeoKnight press shipped straight from their Massachusetts factory — not a gray-market or refurbished unit.
💰 Same Price as Buying Direct
You get authorized-dealer pricing with the support of a real supplier behind it — no premium for ordering through us.
🌟 Serving Printers Since 2008
17+ years outfitting print shops. You talk to people who actually run this gear — not a call center.
💬 We Help You Choose
Not sure which press or platen size fits your work? Message us on Tidio, email, or call (512) 454-0505.
🏭 Factory Warranty & Support, Direct
Warranty and tech support are handled directly by GeoKnight, the manufacturer — including FREE lifetime tech support from the people who built it.
📦 Complete Decorating Ecosystem
Presses, transfers, vinyl, inks and supplies on one invoice — everything your shop needs from one supplier.
Equipment Financing Available
Spread the cost of your press through our financing partner. Section 179 tax advantages may apply on qualifying equipment — consult your tax advisor. Fast approvals, low monthly payments.
Ships Directly from GeoKnight
This press ships directly from GeoKnight. River City Supply does not stock these in our San Antonio warehouse. They are typically in stock and ready to ship. If you need it quickly, message us on Tidio or call (512) 454-0505 to verify the current lead time before ordering. Once an order is placed and has shipped, it cannot be canceled.
Support & Service by GeoKnight
All warranty, technical support and service for this press are handled directly by GeoKnight, the manufacturer — not by River City Supply. lifetime on the heating element (original owner), 3-year on the heat-control electronics, and 1-year on parts — plus FREE lifetime tech support.
To reach GeoKnight directly with any product issue, warranty claim or service request: (800) 525-6766 or (508) 588-0186 · [email protected]
For sales, pricing or order questions, you can reach River City Supply at (512) 454-0505 or our contact page.
Please Note Before Ordering
Heat-press sales are final and non-returnable. Made in the U.S.A. Add $35 for a 220V international unit where offered.
Related Products & Resources
Ready to Print?
Order the DK20A today, or message us for help choosing the right platen size and transfers for your shop.
Technical Specifications
| GeoKnight DK20A Auto-Release 16×20 Clamshell — Technical Specifications | |
|---|---|
| Platen size | 16″ × 20″ |
| Press type | Digital clamshell garment heat press (Digital Knight line) |
| Auto-release | Pop-Up auto-open + HOVER |
| Temperature range | 32°–600°F, ±2°F readout (°F or °C) |
| Controls | Digital temp, automatic timer + dual pre-press timer, digital pressure bar graph, programmable presets, cycle counter, end-of-cycle alarms |
| Heater | SuperCoil-Microwinding™, Teflon-coated ¾″ thick platen |
| Frame | Solid welded steel, hardened high-strength pivot points, interchangeable bottom tables, gas-spring self-lift |
| Compatibility | HTV, DTF, dye-sublimation, plastisol/screen-print transfers, foil |
| Electrical | 1800W / 15A / 120V (240V available) |
| Machine weight | ~103 lbs |
| Origin | Made in the U.S.A. |
| Warranty (via GeoKnight) | Lifetime heating element (original owner), 3-year controller, 1-year parts; FREE lifetime tech support |
| Ships from | Direct from GeoKnight, Brockton, MA — typically 1–2 business days |
Technical Sheets / Safety Data Sheets / Documents
FREQUENTLY ASKED QUESTIONS
It presses HTV, DTF transfers, dye-sublimation, plastisol screen-print transfers and foil onto tees, totes and other flat goods. The 16″ × 20″ platen handles full-size prints on adult apparel.
The platen lifts up and away from the rear of the bottom table on a smooth gas-spring, so heat stays away from your hands and you get full access to load and drape garments around the table.
It depends on your transfer — HTV and DTF typically press around 305–320°F, plastisol transfers higher. Always follow your material’s instructions, and save your settings to a programmable preset for repeatable results.
Yes — the DK20A opens automatically at the end of the timing cycle (no air compressor needed) and includes the HOVER feature for curing. The non-auto DK20 can be upgraded to Pop-Up later.
Handled directly by GeoKnight, the manufacturer: a lifetime warranty on the heating element (original owner), 3 years on the heat-control electronics and 1 year on parts — plus FREE lifetime tech support.
It drop-ships directly from GeoKnight in Brockton, Massachusetts — typically within 1–2 business days.
Heat-press sales are final and non-returnable, so please confirm the DK20A fits your work before ordering. If you’re unsure, message us first.
Yes — equipment financing is available through our financing partner, and Section 179 tax advantages may apply. See financing options ›
Questions about the DK20A? We’re happy to help.
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