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.

✔ 16″ × 20″ even, edge-to-edge platen
✔ Opens up & away on a gas-spring lift
✔ Digital temp 32–600°F, ±2°F
✔ SuperCoil-Microwinding™ heat
✔ Auto-release Pop-Up + HOVER
✔ Lifetime heater-element warranty
Ships direct from GeoKnight — Brockton, MA. Typically 1–2 business days · Free UPS Ground in the continental U.S.

$1,650.00

Description

River City Supply · Authorized Dealer
GeoKnight DK20A Auto-Release 16×20 Clamshell

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

GeoKnight DK20A Auto-Release 16×20 Clamshell (16″ × 20″ platen, made in the U.S.A.)
Teflon-coated ¾″ heat platen with SuperCoil-Microwinding™ element
Digital controller — temp, dual timer, pressure bar graph, presets & cycle counter
Auto-release Pop-Up mechanism with HOVER
GeoKnight factory warranty & FREE lifetime tech support

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

ModelPlatenAuto-ReleaseBest For
DK1614″ × 16″— (manual)Compact garment printing
DK16A14″ × 16″Pop-Up + HOVERCompact, semi-auto
DK2016″ × 20″— (manual)Largest clamshell, full-size prints
DK20A16″ × 20″Pop-Up + HOVERLargest, 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.

See financing options ›

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 size16″ × 20″
Press typeDigital clamshell garment heat press (Digital Knight line)
Auto-releasePop-Up auto-open + HOVER
Temperature range32°–600°F, ±2°F readout (°F or °C)
ControlsDigital temp, automatic timer + dual pre-press timer, digital pressure bar graph, programmable presets, cycle counter, end-of-cycle alarms
HeaterSuperCoil-Microwinding™, Teflon-coated ¾″ thick platen
FrameSolid welded steel, hardened high-strength pivot points, interchangeable bottom tables, gas-spring self-lift
CompatibilityHTV, DTF, dye-sublimation, plastisol/screen-print transfers, foil
Electrical1800W / 15A / 120V (240V available)
Machine weight~103 lbs
OriginMade in the U.S.A.
Warranty (via GeoKnight)Lifetime heating element (original owner), 3-year controller, 1-year parts; FREE lifetime tech support
Ships fromDirect from GeoKnight, Brockton, MA — typically 1–2 business days

Technical Sheets / Safety Data Sheets / Documents

FREQUENTLY ASKED QUESTIONS

What can the DK20A print?

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.

How does the clamshell open?

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.

What temperature and time should I use?

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.

Is this the auto-release model?

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.

How does the warranty and support work?

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.

Where does it ship from, and how fast?

It drop-ships directly from GeoKnight in Brockton, Massachusetts — typically within 1–2 business days.

Can I return it?

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.

Do you offer financing?

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.

Call (512) 454-0505

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