Save $495. Manual batch closing with no motorized system to maintain.
Introductory price: $2,500
Save $495 off the $2,995 MSRP • $199 lower-48 shipping • applicable tax addedFill with your Knockbox.
Close with GC.
Close a full batch with a consistent Dutch crown—without hand-twisting and without buying a complicated automated machine. The GC Crimper is manual, durable, trainable, and available for an introductory $2,500 plus $199 lower-48 shipping and applicable sales tax—$495 off the $2,995 MSRP.
PENDING

in an in-house timed run
introductory equipment price
In-house run recorded April 9, 2024: 500 pre-rolls in 24 minutes. Actual output varies by operator, material, fill consistency, and production setup.
Watch the full cycle.
See the finished crowns.
No control panel. No programming. No pneumatic hookup. The full demonstration follows the operator through closing, exporting, and a clear look at the finished Dutch-crown pre-rolls.
- 01Transfer the filled batch
- 02Close the Dutch crowns
- 03Export and collect
Ridiculously simple.
Seriously scalable.
You already invested in a Knockbox workflow. Add the closing step you need—not an entirely new production line.
Nearly 10× the upfront equipment price.
The RollCraft ATC was advertised at $24,995 in August 2026. GC is designed for compatible Futurola Knockbox workflows; other manual systems may use their own trays and may be priced differently. Confirm current price, included components, compatibility, and throughput before comparing. View source ↗
Maintenance without the mystery
No motors, sensors, pneumatics, or software stack. Clear components keep contact areas visible, and replacement parts are available.
Scale one station at a time
Add another Crimper and train another operator. No facilities project, power drop, air line, or production-line rebuild required.
Keep the workflow that works
Built to follow compatible Futurola Knockbox production rather than forcing your team onto an entirely different filling system.
One closer.
Your cone size.
Each model is $2,500 plus $199 lower-48 shipping and applicable sales tax during the introductory offer—a $495 savings from the $2,995 MSRP. Confirm the exact tray and cone specification before ordering.
84 mm
For common 0.5 g cone production.
Choose the 0.5g Model 109 mm
For common 1 g cone production.
Choose the 1g Model A complete closing station.
- 01 Holding piece
- 02 Closing piece
- 03 9× exporting piece
- 04 Catch plate
- 05 Catch + store container
Before it goes
on the line.
What operators need to know before replacing hand-twisting with batch closing.
Which model do I need?
Choose the 0.5 g Model for 84 mm cones or the 1 g Model for 109 mm cones. Confirm your exact Knockbox tray and cone specification before ordering.
Does it replace the Knockbox?
No. Your compatible Futurola Knockbox fills and packs the cones. The GC Crimper takes over the separate closing step, forming a Dutch-crown finish across the batch.
What comes with it?
Every kit includes a holding piece, closing piece, 9× exporting piece, catch plate, and catch-and-store container. Replacement parts are available.
Does it need power or a mechanic?
No. The Crimper is manual: no motor, compressed air, software, sensors, or complicated controls. Operators learn a repeatable physical workflow, and there is no motorized closing mechanism to service.
How does direct checkout work?
Choose the 0.5g or 1g Model and enter the delivery information. Lower-48 shipping and handling is $199. The checkout adds applicable destination-based sales tax and then creates an exact USDC payment request on Ethereum Mainnet. Alaska, Hawaii, and international delivery require an invoice and carrier quote. After payment, paste the public transaction hash. The checkout verifies the token, complete amount, recipient, network, and confirmations before the order is released for fulfillment. ACH and traditional invoices are available by email.
Stop twisting
one at a time.
Give your Knockbox workflow the closing station it was missing.
