Engineered Cannabis Processing System
Designed by Ryan Hall (Peter Ryan Hall on patent and legal records), who built the first functional automated cannabis trimming machine in 1997.
Twenty‑nine years of research and development are built into today’s equipment — engineered for real production, not marketing claims.
Shearline equipment is sold exclusively through Shearline, providing customers with direct system guidance, current specifications, and ongoing technical support.
Real Results
Shearline systems are judged by what happens on the production floor.
These are facility-specific production results, not guaranteed throughput ratings. Actual throughput varies with flower condition, drying, feed rate, crew, and processing requirements.
Proud Mary (BC): ~120 lb per 8-hour shift vs ~2 lb by hand
Valor Craft (DE): 16 lb harvest in about 2 hours; paid for itself in under 6 months
PharmaFlow (QC): Hand-trim quality with under 5% touch-up; outperforms prior commercial machines
Segra: Hybrid trim + sort in continuous production
Complete Shearline cannabis processing system installed at Segra facility in Kelowna, BC, including tandem bucking stations, trimmer, sorter, and cyclone dust collection system.
Shearline designs integrated cannabis processing systems for operators who value durability, maintainability, and consistent real‑world results over short‑term optimization or planned replacement cycles.
Our systems are built around proven mechanics, material behavior, and practical process control.
- No metal‑to‑metal contact between reel and blade, eliminating metal contamination risk in finished buds.
- Hardened M2 blade and fully electroless‑nickel plated reel that stay sharp for years in real production use.
- Low‑friction, food‑grade surfaces that resist resin build‑up and make cleaning fast and straightforward.
Cyclone First. HEPA Second.
Shearline separates bulk trim from the airstream before it reaches the HEPA filter. The cyclone does the material-separation work first, protecting the filter from heavy plant-material loading and helping maintain consistent suction during production.
The result is less filter loading, fewer service interruptions, and valuable trim collected cleanly in the drum instead of becoming embedded in filter media.
A high-capacity factory configuration is also available with 155 sq ft of HEPA filtration and a 55-gallon collection drum for extended production runs.
Current Shearline Equipment & Pricing
Shearline Original trimmer + matched cyclone/HEPA collector — US$18,500 plus shipping
Shearline Tandem Bucker — US$10,500 plus shipping
Shearline Sorting System — US$16,000 plus shipping
Shearline equipment is sold factory-direct only. The term Master System refers to a complete Shearline processing line, not a separate trimmer model or SKU.
Shearline Master System — US$49,950 plus shipping
Includes two double-station Tandem buckers, controlled automatic feeding, the Shearline Original trimmer with matched cyclone/HEPA collector, and the Shearline Sorting System.
5-Year Limited Warranty: Shearline-built equipment is covered by a 5-year limited warranty during normal intended commercial use. The Oneida cyclone/collection system and its motor are covered separately under Oneida’s manufacturer warranty.
Scale Production Without Scaling Machine Size
Shearline scales production by adding complete processing lines rather than concentrating capacity in one increasingly large and complex machine.
Each Master System provides approximately 100 lb of processing capacity per 8-hour shift while preserving the same controlled bucking, feeding, trimming, collection, and sorting process. Additional systems can be added as production grows.
This approach provides more than added capacity. It preserves the advantages of smaller, simpler equipment: gentler flower handling, lower mechanical complexity, easier maintenance and cleaning, fewer single points of failure, and greater production redundancy.
For operators processing several hundred pounds per 8-hour shift, multiple complete systems can provide a more flexible and cost-effective path to scale than one very large centralized machine.
What We Build
See Real-World System Performance
Shearline systems are not isolated machines.
They are engineered workflows designed to move flower predictably and gently from preparation through finished product.
Our core systems include:
Bucking Systems
Bucking Systems
Controlled Separation Without Structural Loss
Shearline Tandem Bucker — US$10,500 plus shipping
Most buckers rely on stripping force — pulling branches through fixed openings using driven rollers. This method removes buds violently, often breaking larger flower into smaller pieces and creating hidden damage.
Shearline bucking systems use cutting, not stripping.
Branches are separated cleanly at the base of each bud, allowing buds to release naturally without tearing, compression, or accumulation stress. This preserves bud size, structure, and consistency before trimming begins.
- Two‑person workstation with operators facing each other, designed so two people can work comfortably in a very small footprint.
- Compact, roll‑through design with fold‑down tables that tuck in for moving through doorways, then lock back into position for use.
- Built from 304 stainless and hard‑anodized aluminum so working surfaces are clean, durable, and suited to real production environments.
Bucking is the first opportunity to preserve — or destroy — value.
See Shearline Commercial Cannabis Bucking Systems
Shearline bucking station designed for tandem operation, allowing two operators to efficiently remove flowers from stems with consistent throughput.
Trimming Systems
Shearline Original trimmer + matched cyclone/HEPA collector — US$18,500 plus shipping
Trim systems engineered to preserve flower structure, maintain natural shape, and deliver consistent trim quality without excessive loss.
See Shearline Commercial Cannabis Trimming Systems
Shearline trimming system with integrated automatic feeder, designed for continuous, consistent cannabis processing without manual batch loading.
Sorting Systems
Shearline Sorting System — US$16,000 plus shipping
- Inline with the trimmer so trimmed buds drop straight into the sorter, reducing handling and extra processing steps.
- Configurable drum that can be set up for one, two, or up to four size cuts, matched to how you use the flower (pre‑rolls, extracts, or whole flower).
- Fast, wash‑down cleaning with removable covers and a design that can be hot‑water pressure washed and brought back to a clean state in minutes.
High‑throughput sorting systems designed to work as part of a continuous process — not as a standalone bottleneck.
See Shearline Cannabis Sorting Systems
Shearline sorting system capable of separating cannabis flower into up to four size grades, configurable for in-line operation with the trimmer or standalone use with optional automatic feeding.
Why Shearline Is Different
Most modern equipment is designed around replacement cycles.
We design around long‑term use.
Shearline machines are built to:
- Run consistently year after year
- Minimize consumables and adjustment
- Reduce operator intervention
- Integrate cleanly into a complete processing flow
Good engineering should reduce problems, not create new ones.
For a detailed breakdown of the original engineering and patent history behind Shearline systems, see our Engineering Origins page.
Integrated Systems, Not Isolated Machines
Trim quality is not determined by a single machine.
It is determined by how material is handled before, during, and after processing.
Shearline equipment is designed as an integrated flow — from drying and preparation, through bucking, trimming, and sorting — so flower moves continuously, gently, and predictably through the process.
See How the Complete Shearline Processing System Works
Call or email us to discuss your operation and processing needs
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Improper drying is the primary cause of brittle flower, trichome loss, and poor trimming results. Learn how to prevent these issues in our cannabis drying system guide.