By Stacker Type
Automated Stacking. Operator-Placed Stickers.
GBI's manual stick-placing stacker runs the full automated stacking cycle — the machine handles course assembly, carriage indexing, and package building. The operator places stickers between each course as the package builds. Right for hardwood mills and specialty softwood sawmills where automated stick distribution isn't the right fit.
Typical System Life
GBI Stacker Installations
Operator
Overview
Automated Machine. Operator-Placed Stickers.
The GBI manual stick-placing stacker divides the work between machine and person. The stacker does everything a fully automated GBI installation does: accumulates boards into courses, transfers courses onto the forks, and indexes the carriage down as each course is set. The operator stands at the package face and lays stickers across the top of each completed course before the next course drops.
This isn't a manual stacker in the sense of manual operation — it's a fully automated stacking cycle with the stick-distribution mechanism replaced by a person. That keeps the machine mechanically simpler, reduces capital cost and maintenance overhead, and suits the variability of hardwood operations where species mix, pack configurations, and sticker spacing can change run to run.
Architecture
Built for the Mill Floor
GBI stackers are hydraulically driven — a deliberate design choice, not a legacy limitation. Hydraulic architecture absorbs the shock loads, temperature swings, vibration, and contamination that real mill environments deliver every shift. Where many automation architectures require tighter tolerances and cleaner operating conditions, GBI's hydraulic drive keeps working when conditions aren't ideal.
This architecture is field-proven across more than 100 installations and decades of continuous production use. It's why GBI systems routinely reach 25-year service lives without requiring annual service contracts or scheduled preventive maintenance programs.
Shock-Tolerant
Hydraulic architecture absorbs the impact loads inherent in stacking — without exposing servo drives or encoder feedback loops to mill-floor reality.
Cold-Weather Capable
Hydraulic systems tolerate the temperature extremes of northern and high-elevation mill sites where electric drive systems require additional conditioning.
Dirt & Vibration Tolerant
Designed to run in sawdust, bark, and water environments — no special housekeeping requirements to sustain performance.
Applications
Where Manual Stick Placing Makes Sense
Manual stick placing suits green-end sawmill operations where stickers are needed between courses for kiln drying — but automated stick distribution isn't the right fit for the operation.
Hardwood Sawmills
Hardwood operations commonly run a wide variety of species, dimensions, and pack configurations — often at lower line speeds than high-volume softwood. Automated stick distribution is rarely justified at hardwood throughput rates, and manual sticking gives operators direct control over sticker placement and spacing for mixed-species runs. GBI's manual stick-placing stacker is the standard answer for hardwood stacking lines.
Specialty Softwood Sawmills
Softwood mills below the throughput threshold for automatic stick placing — typically under roughly 100,000 board feet per shift — get a complete GBI stacking system without the capital cost and maintenance overhead of an automated stick-distribution mechanism. The machine handles the stacking; the operator handles the stickers. Full GBI ruggedness and service life at a lower initial investment.
Key Features
Speed, Reliability, and Low Cost of Ownership
Fastack Frame
Minimized stacker motion reduces vibration and fatigue loading — lower wear cycles per board, extended service intervals, longer machine life.
Hydraulic Drive
Proven hydraulic architecture — shock-tolerant, cold-weather capable, and maintainable with standard mill trades. Engineered to operate in real mill conditions.
Single-Operator Design
Runs at full production throughput with one operator. The machine handles the stacking cycle; the operator handles sticker placement. No secondary attendant required.
Bowed Board Tolerance
Strong performance with bowed boards and challenging stock — important for hardwood operations where board straightness varies by species and grade.
No Scheduled PM Required
No annual service contract. No mandatory preventive maintenance program. The machine is engineered to run without a service dependency.
Simpler Machine, Lower TCO
Without an automated stick-distribution mechanism, the manual stick-placing stacker is mechanically simpler, easier to service, and carries a lower initial capital cost than the automatic stick-placing configuration.
Smaller Footprint
No stick-handling envelope means the manual stick-placing stacker fits tighter into existing mill bays — useful for retrofits and brownfield upgrades where floor space is constrained.
Custom-Engineered Per Mill
Configured to lumber length, package width, throughput target, and layout. Left- or right-hand. Every installation is a specific engineering solution.
Third Generation Platform
Modern Controls and Crash Prevention
The manual stick-placing stacker ships on the same Third Generation controls platform as the automatic stick-placing stacker — a modern controls, sensing, and HMI layer built around the proven mechanical chassis. Features specific to automated stick handling are simply not present; everything else carries over.
Control System
- Rockwell Automation ControlLogix L8 processor with distributed I/O
- EtherNet/IP and IO-Link networking throughout
- Quick-disconnect field cabling for faster service
- Rockwell FactoryTalk Optix HMI with built-in web access to production reports
Sensing & Verification
- Allen-Bradley EtherNet/IP absolute encoder on the carriage at 36,000-count resolution
- Keyence through-beam laser for overhead rake-off crash detection
- Photoeye-driven auto-cycle sensing
- Lumber-length verification via IO-Link lasers where required
The Third Generation Feature Set — Manual Stick-Placing Configuration
High-Resolution Carriage Encoder
Absolute encoder on the carriage forks at 36,000-count resolution — up from 255 in earlier generations. Finer positioning, simpler re-homing.
Automatic Front Stop Positioning
Enter course width on the HMI; the controller calculates the pinch point and positions the front lumber stops. Prevents boards from swinging out under the overhead rake-off.
Overhead Rake-Off Crash Detection
A laser scans the overhead rake-off as it descends. If any rake-off pad is not fully seated, the cycle halts immediately — preventing a major crash.
Stacker Auto Cycle
Photoeye-driven auto-cycle runs the stacker when enough lumber is present to make a course — with the crash-detection safeties active.
FactoryTalk Optix HMI
Modern touchscreen HMI with built-in web access for production reports and remote viewing. Console-adjustable width, thickness, and course-count settings.
Remote Diagnostic Access
Compatible with GBI Remote Stacker Support — GBI engineers can see live HMI data, camera feeds, and diagnostics to resolve faults without a site visit.
All Third Generation features are available as individual line items or as a bundled retrofit package for existing GBI stackers in the field. See the Controls, Sensors and Monitoring Upgrade →
Specifications
General Capability Reference
Specifications vary by mill configuration. Contact GBI for application-specific sizing.
| Parameter | Detail |
|---|---|
| Configuration | Manual stick placing — automated stacking cycle; operator-placed stickers |
| Frame Design | Fastack — minimized motion architecture |
| Drive | Hydraulic |
| Lumber Lengths | Typically 6 to 20 feet; longer on request |
| Package Widths | Typically up to 48 inches; wider on request |
| Handedness | Configured left- or right-hand to mill layout |
| Species | Hardwood and specialty softwood; dimension lumber through timbers |
| Typical System Life | 25 years |
| Controls | Third Generation — Rockwell ControlLogix L8 + FactoryTalk Optix HMI |
Ownership Advantage
What's Included — No Surprises
Startup & Training Included
Every GBI quote includes commissioning, startup, and operator training. There are no hidden end-of-job costs to negotiate after the purchase is made.
No Annual Service Contract
GBI does not require an ongoing service agreement to maintain warranty or support. You own the machine outright — without a recurring service dependency.
Simpler Machine, Lower TCO
Fewer moving parts than the automatic stick-placing configuration means fewer things to service, fewer spares to stock, and lower total cost of ownership across the life of the system.
Configure Your Manual Stick-Placing Stacker
Tell GBI your line speed, package geometry, species mix, and layout. We'll engineer the right stacker for your hardwood or specialty softwood operation.
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