PPG Semco® Model 285-A Semkit® Package Mixer Timer — Semi-Automatic Mixing with Built-In Bell Timer | 115 VAC
Mix with precision and ease — every time. Semi-automatic performance engineered to deliver consistent, uniform results while reducing operator fatigue.
The PPG Semco® Model 285-A Semkit® Package Mixer Timer combines mechanical precision with user-friendly semi-automatic operation — delivering consistently uniform material blending, a built-in bell timer for cycle-perfect mixing, and a lightweight portable design that fits seamlessly into any professional workspace.
⚠️ Safety Notice: Always follow applicable safety protocols and manufacturer guidelines when operating mixing equipment. Ensure power supply compatibility before use. Do not exceed recommended mixing cycle parameters.
At a Glance
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Semi-Auto
Mixing Operation
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Technical Specifications
| Specification |
Detail |
| Brand |
PPG – Semco® |
| Model |
285-A Semkit® Package Mixer Timer |
| Operation Type |
Semi-Automatic |
| Power Supply |
115 VAC Standard |
| Mixing Mechanism |
Drive Spindle + Rotating Dasher via Vertical Stroke |
| Cycle Indicator |
Built-In Bell Timer |
| Portability |
Lightweight, Portable Design |
| Compatible With |
Semco® Semkit® Cartridge Packages |
How It Works
⬇️
Step 1
Stroke the Cartridge
Operator strokes the Semkit® cartridge vertically — the drive spindle engages and begins rotating the mixing rod automatically
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🔄
Step 2
Rotating Dasher Blends
The rotating dasher thoroughly blends materials throughout the cartridge — ensuring a consistent, uniform mix with every stroke cycle
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🔔
Step 3
Bell Timer Alerts
The built-in bell timer sounds precisely when the mixing cycle is complete — no guesswork, no over-mixing, no under-mixing
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Key Features & Benefits
🔄 Semi-Automatic Precision Mixing
The drive spindle automatically rotates the mixing rod with each vertical stroke — combining mechanical efficiency with operator control for consistently uniform material blending that manual mixing simply cannot match.
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🔔 Built-In Bell Timer
The integrated bell timer alerts the operator precisely when the mixing cycle is complete — eliminating guesswork, preventing over-mixing or under-mixing, and ensuring every batch meets your exact material specifications.
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💪 Reduced Operator Fatigue
Semi-automatic operation significantly reduces the physical effort required for thorough material blending — minimizing operator fatigue during high-volume or repetitive mixing operations without sacrificing mix quality.
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🔌 Standard 115 VAC Power
Runs on standard 115 VAC power — no special electrical infrastructure required. Simply plug in and operate from any standard workshop, production floor, or field service outlet.
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🧳 Lightweight & Portable
Compact, lightweight design fits seamlessly into any workspace — from high-volume production floors to MRO facilities and field service operations — without requiring dedicated equipment space or fixed installation.
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🎯 Consistent, Uniform Results
The rotating dasher's engineered blend action ensures thorough, homogeneous material mixing — delivering optimal sealant or adhesive consistency for reliable application performance and quality-compliant results every time.
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Why Semi-Automatic Mixing Matters
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Manual Mixing Risks
Inconsistent blend quality, operator fatigue, variable cycle times, and unreliable material ratios — leading to poor application performance and potential rework
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Without a Timer
Over-mixing degrades material properties. Under-mixing results in incomplete cure, adhesion failures, and non-conforming sealant performance in critical applications
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Model 285-A Solution
Semi-automatic rotation + bell timer = consistent blend quality, precise cycle control, and reduced fatigue — every batch, every time
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Aerospace Assembly Sealant Mixing & Application Two-Part Adhesive Preparation MRO Operations Manufacturing Assembly Production Floor Operations Field Service & Maintenance Quality-Critical Material Blending
Complete Your Workflow
⚠️ Required Components
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Semco® Semkit® Cartridge Package
Pre-measured two-part material package designed for use with the Model 285-A mixing system
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115 VAC Power Outlet
Standard wall outlet required — no special electrical infrastructure needed
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⭐ Recommended Accessories
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Dispensing Guns
Pneumatic or manual guns for precise, controlled material application after mixing
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Dispensing Nozzles
Precision nozzles for targeted material delivery — available in multiple tip configurations
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Application Tools
Spatulas, brushes, and finishing tools for professional material application and surface preparation
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Quality You Can Count On
🎯
Consistent Uniform Blending
Rotating dasher delivers thorough, homogeneous material mixing — every batch, every time
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🔔
Cycle-Perfect Timing
Built-in bell timer eliminates guesswork — no over-mixing, no under-mixing, no material waste
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💪
Reduced Operator Fatigue
Semi-automatic operation reduces physical effort — sustaining productivity across high-volume operations
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🧳
Portable Workplace Versatility
Lightweight design fits any workspace — production floor, MRO facility, or field service operation
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Tips for Best Results
✓ Confirm your Semkit® cartridge package is properly seated before beginning the mixing cycle
✓ Always allow the bell timer to complete its full cycle — do not stop mixing early to ensure complete material homogeneity
✓ Maintain a consistent vertical stroke rhythm for optimal dasher rotation and uniform blend quality
✓ Verify power supply is 115 VAC before plugging in — do not use with incompatible voltage sources
✓ Dispense mixed material promptly after the timer sounds — follow material manufacturer's pot life guidelines to ensure optimal application performance
PPG Semco® Model 285-A Semkit® Mixer Timer — Your partner in professional mixing precision, consistency, and productivity.
Compatible with Semco® Semkit® cartridge packages. Runs on standard 115 VAC power.
⚠️ Safety & Compliance Notice: Always follow applicable safety protocols and manufacturer guidelines when operating mixing equipment. Ensure power supply compatibility before use. Do not exceed recommended mixing cycle parameters.
Semco® and Semkit® are registered trademarks of PPG Industries. Specifications subject to change without notice.