How To Use The RollCraft MRB Pre Roll Machine

Hand-packing 1,000 pre-rolls a day can burn 8–12 labor hours fast. The MRB exists for the moment your quota grows, but your headcount can’t.

The RollCraft MRB is built for craft and mid-market teams that want real automation without buying a giant all-in-one line. It’s $3,500, weighs about 26 lbs, and runs 72 or 143 cones per cycle. It also uses STM Canna’s patented technology, so you get consistency without turning your room into an engineering project.

What you need before you start using the RollCraft MRB Pre Roll Machine

Think of The RollCraft MRB like a tray-based rhythm. If your station is messy, your fills get messy.

Here’s the quick checklist:

• RollCraft MRB machine
• Bottom tray + top tray for 72 or 143 cones
• Mini loading box to help load cones straight
• Pre-rolled cones (common sizes are supported)
• Ground material that’s consistent in texture
• A clean table with space for 2 trays side-by-side

The MRB is designed to pack evenly without pre-weighing. Your prep still matters. If your grind swings from fluffy to sandy in the same batch, your results swing too.

Step-by-step: How to run a full RollCraft MRB Pre Roll Machine cycle

Step 1: Set your station like a simple assembly line

Put your empty cone tray on the left. Put your “filled tray” landing spot on the right.

That one small move can save 30–60 seconds per run because you stop reaching across your table.

Step 2: Load cones into the bottom tray

Use the mini loading box to hold the bottom tray while you load cones.

Goal: cones sit straight, filters seated, no bent paper. If 3 cones are crooked in a 72 tray, you’ll feel it when you pack.

Step 3: Place the top tray and prep the run

Stack the system the way your workflow expects:

• Bottom tray loaded with cones
• Top tray aligned and seated

Now you’re ready to fill.

Step 4: Add material and choose your setting

The MRB uses a 44 ft-lb centrifugal filling and packing system and is designed to produce repeatable fills without pre-weighing.

Many teams treat settings like recipes. If SKU A runs clean on “Low” and SKU B needs “High,” write it down. That notebook can save 20–30 minutes of re-testing each week.

Step 5: Run the cycle

A typical fill happens in about 60–90 seconds depending on material and workflow.

When the cycle ends, remove the tray stack carefully. Move it to your landing spot. Start the next tray right away.

A steady pace looks like this:

• 1 cycle every 1–2 minutes
• 72 cones per cycle
• That’s 2,160 to 4,320 cones per hour if your station stays tight

Real rooms slow down for reloads and checks, so track your true rate over 10 cycles, not 1.

Step 6: Quick quality check before you scale the run

Check 5 cones every cycle for the first 3 cycles.

Look for:

• Even fill height
• No loose “air gaps”
• No torn paper
• Consistent pack feel

After that, check 5 cones every 3–5 cycles.

It’s like baking. You don’t cut into every cookie. You just verify the batch stays stable.

How to hit better consistency in the first 30 minutes with your RollCraft MRB Pre Roll Machine

If you want the MRB to feel “easy,” focus on two things first:

Material consistency beats operator strength

The MRB is built to reduce labor and boost output, but it can’t fix chaotic prep.

If your material clumps, break it up before loading. If it’s too wet or sticky, your cycle slows and cleanup gets annoying fast.

Keep one operator in control

The MRB is often run by one operator at craft scale. That works best when the same person owns:

• loading cones
• running cycles
• staging filled trays

If you split the job across 2 people, you can move faster. You can also introduce more variance. Pick one and standardize it.

Common MRB problems and quick fixes

Problem: Cones look underfilled

Most of the time it’s one of these:

• Material prep isn’t consistent
• Cones aren’t seated evenly in the tray
• You changed cone size but kept the same “recipe”

Fix: run 2 test cycles and check 10 cones total before you keep going.

Problem: Some cones pack tight, others feel loose

This usually points to uneven material flow or uneven cone seating.

Fix:

• reload the tray with extra attention on straight cones
• keep your material feed consistent from start to finish

Problem: Cleanup takes too long

Sticky buildup slows every pre-roll machine on earth.

Fix: clean small, not “hero clean.”

• wipe contact areas every 5–10 cycles
• do a deeper clean at the end of the shift

For general pre-roll machine care, consistent cleaning routines cut jams and weight issues.

Scaling: When the MRB becomes a real production tool

The MRB is modular by design. You can start with filling and packing, then scale into a fuller workflow as volume grows.

A common next step is pairing filling with automated Dutch Crown closing. RollCraft offers a bundle pairing the MRB with an automated closer for a full fill-to-close workflow.

If your team is pushing 5,000 to 10,000 pre-rolls per day, the question shifts from “Can we fill?” to “Can we keep the line moving without hand-twisting for hours?”

That’s the bottleneck most people feel next.

Why operators choose RollCraft MRB Pre Roll Machine for craft-scale automation

RollCraft is made for producers who felt stuck between hand work and oversized systems.

Quick facts that matter on the floor:

• $3,500 entry point for MRB automation
• 72 or 143 tray cycles
• No pre-weighing required
• Made in the USA
• Built on STM Canna’s track record of 1B+ pre-rolls processed across 44 states and 14+ countries (RollCraft is new, so lean on STM credibility for proof)

Next step: calculate your labor tradeoff in 2 minutes

Take your daily target and do this:

1. Daily pre-roll goal: 5,000
2. Hand pack rate per person: 400 per hour
3. Hours needed by hand: 5,000 ÷ 400 = 12.5 labor hours per day

Now ask the question that matters:

If the MRB removes even 6 labor hours per day, what does that save you in 30 days?

If you want, talk to sales and ask for a walkthrough based on your cone size, grind style, and daily target. That call is usually the fastest path to a clean setup.

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FAQ

How many pre-rolls can the RollCraft MRB make per cycle?

The MRB runs 72 or 143 pre-rolls per cycle, depending on the tray you use.

Do I need to pre-weigh flower for the MRB?

No. The MRB is designed for consistent filling without pre-weighing.

How long does one MRB run cycle take?

Many fills complete in about 60–90 seconds, depending on material and workflow.

What’s the MRB price?

The RollCraft MRB is listed at $3,500.