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SKU: 229340
Product Type: Portable Mixers
Vendor: PPG - SEMCO®

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

Model 285-A
Model Number
115 VAC
Power Supply
Semi-Auto
Mixing Operation
Bell Timer
Cycle Alert

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

🔄
Step 2
Rotating Dasher Blends

The rotating dasher thoroughly blends materials throughout the cartridge — ensuring a consistent, uniform mix with every stroke cycle

🔔
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

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.

🔔 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.

💪 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.

🔌 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.

🧳 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.

🎯 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.

Why Semi-Automatic Mixing Matters

Manual Mixing Risks

Inconsistent blend quality, operator fatigue, variable cycle times, and unreliable material ratios — leading to poor application performance and potential rework

⚠️
Without a Timer

Over-mixing degrades material properties. Under-mixing results in incomplete cure, adhesion failures, and non-conforming sealant performance in critical applications

Model 285-A Solution

Semi-automatic rotation + bell timer = consistent blend quality, precise cycle control, and reduced fatigue — every batch, every time

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
Semco® Semkit® Cartridge Package
Pre-measured two-part material package designed for use with the Model 285-A mixing system
115 VAC Power Outlet
Standard wall outlet required — no special electrical infrastructure needed
⭐ Recommended Accessories
Dispensing Guns
Pneumatic or manual guns for precise, controlled material application after mixing
Dispensing Nozzles
Precision nozzles for targeted material delivery — available in multiple tip configurations
Application Tools
Spatulas, brushes, and finishing tools for professional material application and surface preparation

Quality You Can Count On

🎯
Consistent Uniform Blending

Rotating dasher delivers thorough, homogeneous material mixing — every batch, every time

🔔
Cycle-Perfect Timing

Built-in bell timer eliminates guesswork — no over-mixing, no under-mixing, no material waste

💪
Reduced Operator Fatigue

Semi-automatic operation reduces physical effort — sustaining productivity across high-volume operations

🧳
Portable Workplace Versatility

Lightweight design fits any workspace — production floor, MRO facility, or field service operation

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.