A disciplined cannabis trimmer setup, from documented starting settings to one-change-at-a-time tuning, is what makes Softrim 1000 results repeatable.

Best Manufacturing Practices for the Cannabis Industry · Softrim Starter Guide Series

Purpose: Cannabis Trimmer Setup for the Softrim 1000

Trimming is the manufacturing step where unwanted leaf is removed. Successful Softrim 1000 processing depends on the relationship between moisture + flower structure + flower size + defoliation + machine setup.

Properly prepared flower should enter the Softrim 1000 as moist, structurally intact flower surrounded by dry, brittle unwanted leaf. The machine is then tuned to remove that leaf while preserving the flower’s existing size, shape, moisture, trichomes, and natural characteristics.

Manufacturing only works when variables are limited to repeatable processes. Consistent material from the dry room and bucking, documented starting settings, and one-change-at-a-time tuning make trim results repeatable, and the more repeatable the process, the more stable the output.

The diagram below shows the setup and tuning workflow, and the rest of this guide walks through it step by step.

Softrim 1000 cannabis trimmer setup workflow: From bucking: confirm leaf is ready (or condition first), startup check, starting settings, spacing by size, belts, draw mode, oscillation, feed, then sample check. If off spec, adjust one thing and re-sample; if on spec, run production and send to QC, re-running from QC as needed.
Softrim 1000 Setup & Tuning Workflow (tap or click to enlarge)

Quick Reference Guide

A road map of this guide, in the same order as the diagram. Review it before reading, then use it at the machine. Click any topic to jump to that section.

# Topic At a Glance
1 Confirm Material Condition Leaf must be dry and brittle. Pliable leaf: condition the flower, do not tune the machine.
2 Startup Check Doors closed, connectors in, E-stop disengaged, solid green light.
3 Starting Settings Primary 75–100 • Draw 1–5 STITCH (max 25) • Oscillator 0 • Conveyor 65.
4 Spacing by Flower Size A / top colas 2–2.5 • B / large C 1.5–2 • C / smalls / micros 1–1.5.
5 Belt Selection Ideal indoor 55D / 75D. Heavy leaf: 75D / 75D pass, then final trim. Softest that trims.
6 Draw Mode STITCH for most flower. Consider CONSTANT for smalls, fragile, or heavily defoliated flower.
7 Oscillation Start at 0. If needed, 5, then +5. Best for dense, round flower; cautious on loose flower.
8 Feeding Small handfuls; let the chute clear. Never push or pack.
9 Sample, Check & Tune 1–2 leaves: tighten ½ turn • More: 1 turn • Breakup: back off ⅛–¼ turn • Near 0.5: stiffer Draw, then Primary.
10 Production Run Run the batch only after a sample is on spec. Output goes to QC.
11 Re-Processing Re-run as many times as needed; let the flower’s response set the passes.
12 Throughput Reference ~1,000 lb per 8-hour shift; ~20 seconds per lb of active processing.

The Softrim 1000 formula: evaluate moisture + structure + size + defoliation, then set spacing + belts + draw mode + oscillation.

Walking Through the Workflow

Each step below follows the diagram from bucking to QC.

1. Confirm Material Condition

Before starting, and before ever making Softrim more aggressive, confirm the flower is properly conditioned. If the remaining unwanted leaf bends, folds, rolls, or stays soft or leathery, return it to the dry room for conditioning (see the Dry Room Starter Guide). Excessively wet material should be conditioned rather than compensated for with increasingly aggressive settings. If the leaf is already dry and brittle but the trim is below specification, then use machine adjustments: spacing, belts, Draw operation, and oscillation.

Key principle: condition the flower when the flower needs adjustment. Tune the machine when the machine needs adjustment.

2. Startup Check

Before processing, confirm the machine doors are closed, both cartridge connectors and the machine-to-HMI connectors are connected, the E-stop is disengaged, and the green indicator light is solid.

Table 1. Green Light Indicator

Light Meaning
Slow flash Green button requires operator input
Fast flash Fault condition
Solid green Machine ready

Table 2. Starting Settings

Adjustment Recommended Starting Point
Primary belt speed 75–100
Draw belt 1–5 on STITCH; do not exceed 25
Oscillator Start at 0; if needed, start at 5 and increase in increments of 5
Vibratory conveyor 65 default; do not exceed 65

These settings are a baseline. Final settings are determined by the actual flower and the finished trim result. Recording what works for each cultivar and flower category turns tuning into a repeatable manufacturing procedure.

4. Starting Spacing by Flower Size

Table 3. Starting Spacing

Flower Category Starting Spacing
A — Top Colas 2–2.5
B’s / Large C’s 1.5–2
C / Smalls / Micros 1–1.5

Larger flower needs more room through the trimming area; smaller flower generally benefits from tighter spacing to stay engaged with the belts. Keep the size separation established during bucking whenever practical, because different flower sizes may need different settings.

Key principle: larger flower = wider spacing. Smaller flower = tighter spacing.

5. Belt Selection

The two belts have different jobs. The Primary (FAST MOVING) focuses on flower protection and controlled engagement; the Draw (SLOW MOVING) provides trimming aggression and leaf-removal force. Whenever practical, use a softer Primary and control most of the trimming aggression through the Draw. Belt durometers: 55D (pink) soft, 65D (blue) medium, 75D (orange) stiff. The preferred starting configuration for ideally prepared indoor flower is 55D Primary / 75D Draw.

Table 4. Quick Belt Selection

Flower Condition Primary
(FAST MOVING)
Draw
(SLOW MOVING)
Ideal dry, general indoor 55D 75D
Large / dense 55D 75D
Large / loose 55D 75D → 65D if breakage appears
Smalls 55D or 65D 65D or 75D
Dry smalls + significant leaf 65D 75D
Near-finished / light cleanup 55D 65D
Slightly moist / resilient 65D 75D
Lowers 65D 75D
Poorly defoliated / heavy leaf 65D or 75D 75D
Very dry / fragile large flower 55D 65D
Excessively wet material Condition first Condition first

Moisture rule: Slightly more moisture gives flower flexibility to flex and conform rather than break, which can allow stronger belt engagement, and more pliable leaf may also need stronger interaction to remove. Very dry flower is less flexible and carries greater breakage risk.

Poor defoliation and two-pass processing: When significant defoliation is required, run a defoliation pass at 75D Primary / 75D Draw to remove heavier exterior leaf, then a final trim at 55D or 65D Primary / 65D or 75D Draw, chosen by flower size, structure, moisture, remaining leaf, and how much trimming is still needed.

Key principle: use the softest configuration that produces the required trim while preserving the flower.

6. Draw Mode: STITCH vs. CONSTANT

STITCH (the normal starting mode, 1–5) runs the Draw belt in short, staggered movements. At 1 on STITCH, the belt moves about two inches every 2–3 seconds and stays relatively still in between, which increases trimming interaction and surface contact. Each movement also advances the belt; as the silicone fingers pass through the lower cartridge they spread apart and release captured leaf and waste. The result is a cycle of trimming interaction → belt advancement → waste release → trimming interaction.

CONSTANT keeps the Draw moving continuously, reducing prolonged stationary contact with the flower. That helps extremely dry or fragile flower avoid unnecessary breakdown, and reduces extra touches on heavily defoliated flower that needs less trimming.

Table 5. Draw Mode Starting Rule

Flower Draw Mode
General flower STITCH
Smalls / micros Consider CONSTANT
Extremely dry / fragile Consider CONSTANT
Heavily defoliated / light trim requirement Consider CONSTANT

Key principle: STITCH maximizes trimming interaction while periodically advancing and clearing the Draw belt. CONSTANT keeps the Draw moving when less stationary interaction is desired. The Draw should not exceed 25.

7. Oscillation

The oscillator adds a horizontal, side-to-side scrubbing motion to the Draw belt, creating an additional plane of motion between the silicone fingers, flower, and remaining leaf. This can expose different areas of the flower, increase leaf movement and its range of motion, and improve interaction on certain flower structures. Begin at 0; if needed, start at 5 and increase in increments of 5, evaluating the flower after each change.

Table 6. When to Use Oscillation

Flower Condition Starting Logic Why
General flower 0 No specific reason to add motion
Dense / tight / round (morphology like Wedding Cake or Gelato) Consider 5, increase gradually Scrubbing reaches more surfaces of compact flower
Slightly pliable leaf Consider 5, evaluate Leaf needs more range of motion; hydrated flower tolerates a little
Smalls needing significant cleanup Consider 5, increase as needed Adds leaf-removal interaction
Loose / open / fragile (morphology like GMO or White Truffle) Prefer 0, use cautiously Greater likelihood of breakdown
Excessively wet / soft leaf Condition first Machine settings cannot fix material condition

Cultivar names are examples of flower morphology, not cultivar-specific required settings.

Key principle: oscillation adds a horizontal scrubbing motion and another plane of interaction. It is not simply an aggression setting.

8. Feeding the Softrim 1000

Feed the chute in small handfuls, let the material move down naturally, and add the next handful as the previous one begins to clear. Keep a steady supply and maintain size separation where practical. Do not force, push, or tightly pack flower down the chute.

Single-piece flow: The Softrim 1000 is designed to pull approximately one row of buds at a time into the trimming area, so each piece of flower receives more consistent treatment, the same principle behind single-piece flow in any manufacturing line.

Key principle: feed consistently and do not pack the chute. Let Softrim pull the flower through naturally.

9. Sample, Check & Tune

Once starting settings are in place, process a small amount of flower and evaluate how much cleanup would still be needed in QC. Make one adjustment at a time, then run another sample and reevaluate.

Table 7. Tuning From the Sample

Sample Result Adjustment
About 1–2 leaves remaining Tighten spacing about ½ turn clockwise
More than 1–2 leaves remaining Tighten spacing about 1 full turn clockwise
Trim is good, breakup appears Back spacing off about ⅛–¼ turn; continue with small adjustments until trim and flower preservation balance
Spacing near 0.5, trim slightly short, breakup beginning Stop tightening and increase belt stiffness: Draw first, then Primary if a 75D Draw is already installed

When to increase belt stiffness: Spacing is the first fine-tuning tool, but past a point, tightening adds breakup without enough extra leaf removal. Near 0.5, increase Draw stiffness first, run another sample, and reevaluate; only if a 75D Draw is already installed and more engagement is needed, increase Primary stiffness. The 0.5 reference is a tuning rule of thumb, not a hard mechanical minimum.

Key principle: spacing first → Draw stiffness second → Primary stiffness last.

10. Production Run

Run the batch only after a sample meets specification. Keep feeding consistent and flower sizes separated, and send output to quality control. Repeated QC findings come back to Step 9 as tuning feedback (see the Quality Control Starter Guide).

11. Re-Processing Flower

Flower can be run through the Softrim 1000 as many times as necessary to reach the desired finished trim, with minimal to no damage to trichomes or overall bud characteristics when the flower is properly conditioned and the machine is properly tuned. Let the remaining leaf, the finished-product requirement, the material condition, and how the flower is responding set the number of passes, not a predetermined maximum.

Key principle: process as many times as necessary to achieve the desired trim while preserving the natural characteristics of the flower.

Supporting Practices

12. Throughput Reference

The Softrim 1000 processes approximately 1,000 lb per 8-hour shift. A useful active-processing reference is approximately 20 seconds per pound. Treat the two separately: total shift throughput also includes loading, sorting, tuning, QC, handling, and the normal production workflow.

Softrim 1000 Checklist

Do Avoid
  • Confirm leaf is dry and brittle first
  • Start from the documented settings
  • Set spacing by flower size
  • Keep the size separation from bucking
  • Use the softest belts that achieve the trim
  • Start the Draw on STITCH
  • Start oscillation at 0; add it for a reason
  • Feed small handfuls
  • Sample before running the batch
  • Make one adjustment at a time
  • Tune from QC feedback
  • Forcing or tightly packing the chute
  • Mixing very different flower sizes
  • Unnecessarily aggressive belts
  • Adding aggression to make up for poorly conditioned flower
  • Tightening after breakup begins
  • Tightening near 0.5 instead of changing belt stiffness
  • Stiffer Primary before using the Draw
  • CONSTANT just because it is faster
  • Oscillation without a reason, or heavy oscillation on fragile flower
  • Running a large quantity before evaluating output
  • Several major adjustments at once
  • Ignoring QC feedback

Key Takeaway

Successful Softrim 1000 processing begins by evaluating moisture + structure + size + defoliation, then setting the appropriate spacing + belt configuration + Draw mode + oscillation, sampling, and tuning one change at a time.

The objective: remove unwanted leaf while preserving flower size, structure, moisture, trichomes, and overall product quality.

Next Step: Quality Control Starter Guide

Trimmed flower moves to quality control, where the Picker routes each bud to pass-through, stem work, re-run, or larf conditioning, and repeated findings feed back into Softrim tuning.

Read the Quality Control Starter Guide →