Help Center

Nope. The Dutch Crown Closer fits all cone sizes—84 mm through 109 mm. Just swap in the matching receiving tray for each run.

• Use the tray that matches your cone size:

  Packing 70 mm cones? Use the 70 mm receiving tray.
  Switching to 109 mm? Just swap trays — no new tool needed.

  ? Your Dutch Crown Closer comes with one receiving tray of your choice.
  Need more sizes? Additional trays are available separately.

  
  
  

If the closer isn’t properly sealing your pre-rolls, the receiving tray size may be incorrect.
If you're using a custom cone size, we can design a tray to match.

Email us at support@kingkoneusa.com for help.

Yes—just reach out through the chat to reserve a pre-order slot. We'll confirm your spot and give you a shipping window.

On average, it handles 45–65 pounds per hour, based on material density and moisture level.

Its heavy-duty motor is built for all types:

• Dry & fluffy

• Dense & compact

• Sticky & resin-heavy

No jams or clogs—just smooth grinding.

Not yet. We launch with one optimized grind setting, but multi-size grind options are coming soon.

We get it — some cone trays work with multiple metering trays, and the chart can feel confusing. Here's how to choose:

? Step 1: Know your fill goal.

• 0.35g – best for minis or stacking 2–3 runs

• 0.5g – standard cones

• 0.7g – mid-size cones

? Step 2: Check your cone tray compatibility.
Use the [compatibility chart] to see which tray works with your cone tray size (e.g. JT Tray, Dog Walker, Slim Reefer).

? Step 3: Choose the tray that hits your target in one drop — or stack fills.

• Want 1g fills? Run 2x 0.5g or 3x 0.35g

• Need to stay under 0.5g? Use the 0.35g tray for tighter control
  
  

Absolutely. We design custom receiving trays in-house for non-standard cones or tubes. Email us the specs, and we'll build it. No need to hack or force-fit.

We accept all major credit cards: Visa, Mastercard, American Express, and Discover.

No PayPal or other payment methods are currently available.

No Returns/Refunds:
All sales are final. We accept returns or exchanges only for product damage in transit or
if the incorrect item is shipped to you.

Orders are processed in the order they are received. You’ll get a confirmation email once your order is placed, and a second email with tracking info once it ships. Delays may occur due to order volume or carrier issues outside of our control.

Shipping charges are calculated at checkout and shown on your cart/invoice before purchase.

Yes — free delivery is available on orders over $5,000 within a 50-mile radius. Orders under $5,000 will have a $50 delivery fee. Deliveries are made between 10 AM–2 PM on scheduled weekdays. You’ll receive a call or text to confirm the delivery window.

Yes — free pickup is available in Corona or Riverside. Pickup hours are 8 AM–2 PM on scheduled weekdays. You’ll be notified by email when your order is ready. Please bring your order confirmation when you arrive.

We currently offer international shipping only for distribution-level orders. Customers must meet the minimum order quantity (MOQ) and provide their own shipping label. A wire transfer must be received and cleared before shipment. We are not responsible for VAT or import duties.

Return shipping for exchanges will be coordinated during the support process. A return address will be provided, and both parties will determine who covers the shipping fees.

All sales are final. We do not accept returns or refunds unless the item arrives damaged or you received the wrong product.

Email us at support@kingkoneusa.com within 30 days of your order date. We'll review your case and arrange a replacement if eligible.

Yes — if your product qualifies (damaged or incorrect), we’ll process an exchange. A return address will be provided, and shipping label responsibility will be confirmed during your support interaction.

Email support@kingkoneusa.com or call (951) 245‑6999. We'll help you identify the part and get it shipped fast.