PPG - SEMCO® Model #285-P Mixer Portable Timer Semi Automatic Mixer - Pneumatic Power

$8,375.36

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SKU: 233500
Product Type: Portable Mixers
Vendor: PPG - SEMCO®

PPG Semco® Model 285-P Semkit® Package Mixer Timer — Semi-Automatic Mixing with Built-In Bell Timer | Pneumatic Power

Mix with precision and ease — every time. Fully pneumatic semi-automatic performance engineered to deliver consistent, uniform results while reducing operator fatigue.

The PPG Semco® Model 285-P Semkit® Package Mixer Timer combines mechanical precision with fully pneumatic semi-automatic operation — delivering consistently uniform material blending, a built-in bell timer for cycle-perfect mixing, and complete portability for any workspace without electrical infrastructure requirements.
⚠️ Safety Notice: Always follow applicable safety protocols and manufacturer guidelines when operating pneumatic mixing equipment. Ensure clean, dry compressed air supply before use. Do not exceed recommended RPM parameters (135-145 RPM).

At a Glance

Model 285-P
Model Number
Pneumatic
Power Source
135-145 RPM
Operating Speed
Bell Timer
Cycle Alert

Technical Specifications

Specification Detail
Brand PPG – Semco®
Model 285-P Semkit® Package Mixer Timer
Operation Type Semi-Automatic
Power Source Fully Pneumatic
Recommended RPM 135-145 RPM
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
Connect Compressed Air

Connect clean, dry compressed air supply to the pneumatic inlet — the drive spindle engages and begins rotating the mixing rod automatically at 135-145 RPM

🔄
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

💨 Fully Pneumatic Operation

No electrical infrastructure required — operates from standard compressed air supply. Perfect for outdoor, remote, and field service operations without power limitations.

🔔 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.

🧳 Lightweight & Portable

Compact, lightweight design fits seamlessly into any workspace — from high-volume production floors to MRO facilities, outdoor operations, and field service environments.

🎯 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.

📋 Operating Instructions Marked On Unit

Permanently labeled operational guidance — quick reference for setup, operation, and maintenance without requiring external documentation or training materials.

Why Pneumatic 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

Electric Equipment Limitations

Requires electrical infrastructure, cannot operate in explosive atmospheres, limited portability, and field service challenges in remote locations

Model 285-P Solution

Pneumatic operation + bell timer = consistent blend quality, precise cycle control, unlimited portability, and field service flexibility

Aerospace Assembly Sealant Mixing & Application Two-Part Adhesive Preparation MRO Operations Manufacturing Assembly Production Floor Operations Outdoor & Remote 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-P mixing system
Clean, Dry Compressed Air Supply
Standard compressed air source required — verify air quality and dryness to prevent equipment damage and ensure optimal performance
⭐ 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

💨
Pneumatic Portability

No electrical infrastructure — unlimited portability for outdoor, remote, and field service operations

Tips for Best Results

Verify compressed air supply is clean and dry before connecting — moisture or contaminants can damage the pneumatic mechanism
Confirm your Semkit® cartridge package is properly seated before beginning the mixing cycle
Maintain recommended RPM range (135-145 RPM) for optimal dasher rotation and uniform blend quality
Always allow the bell timer to complete its full cycle — do not stop mixing early to ensure complete material homogeneity
Dispense mixed material promptly after the timer sounds — follow material manufacturer's pot life guidelines to ensure optimal application performance

PPG Semco® Model 285-P Semkit® Mixer Timer — Your partner in professional mixing precision, consistency, and portability.

Fully pneumatic operation. Compatible with Semco® Semkit® cartridge packages. Operates at 135-145 RPM.

⚠️ Legal Notice: All recommendations, statements, and technical data contained herein are based on tests believed to be reliable and correct, but accuracy and completeness are not guaranteed and are not to be construed as a warranty, either expressed or implied. User shall rely on their own information and tests to determine suitability of the product for the intended use and assumes all risks and liability resulting from use of the product.
⚠️ Usage Notice: The Semco® Model 285-P Pneumatic Mixer is specialized pneumatic mixing equipment designed for manual mixing of Semkit® cartridge packages. Operator training is recommended before use. This equipment is designed for mixing of two-part sealants, adhesives, and compounds in Semkit® cartridge packages only — do not use for other applications without proper evaluation and approval. Verify bell timer functionality before each use — do not operate if timer is non-functional. Ensure compressed air supply is clean and dry before connection — contaminated or wet air can damage the pneumatic mechanism and compromise mix quality. Maintain recommended operating RPM range (135-145 RPM) for optimal mixing performance and dasher rotation. Inspect all pneumatic hoses, connections, and components for damage, leaks, or wear before each use — replace damaged components immediately. Never exceed maximum recommended operating parameters. Always follow manufacturer guidelines, safety protocols, industry standards, and applicable regulations for your specific application and environment. Improper operation can result in serious injury, equipment damage, or material loss. Specifications subject to change without notice.
Trademark Notice: Semco® and Semkit® are registered trademarks of PRC-DeSoto International Inc. and PPG Industries, registered with the U.S. Patent Office. PPG-SEMCO® is a registered trademark of PPG Industries.