Drag Conveyor Chains
Constromech’s Drag Conveyor Chains are engineered for horizontal and inclined conveying of abrasive, hot, and heavy bulk materials — such as ash, cement, clinker, coal, and minerals — within a sealed and controlled system.
Whether your system requires a Single Strand Chain for compact conveyors or a Double Strand Chain for high-capacity, high-torque applications, we offer fully forged, case-hardened chain solutions built for long service life with minimal wear and zero compromise on performance.
Technical Highlights & Construction Features
| Feature | Technical Detail |
| Chain Profile | Drop-forged single/double strand links with wide shoulders for torque stability |
| Material | Alloy steel with refined microstructure; hardened for abrasive and thermal resistance |
| Heat Treatment | Quenched and tempered; case-hardened to 40–50 HRC for high wear performance |
| Pin System | Precision-ground pins with positive locking and shock-load tolerance |
| Flight Attachment | Welded or bolted scrapers in flat bar, T-head, or U-type configuration |
| Pitch Precision | Tight tolerances reduce misalignment, noise, and premature elongation |
| Breaking Load | Chains proof-tested up to 3.2× rated working load |
Single vs. Double Strand Chain – What’s Right for You?
Single Strand Drag Chains
Ideal for low to medium-load conveyors with tight spatial configurations.
- Compact and economical
- Smooth operation at moderate speeds
- Lighter construction — easier maintenance
- Recommended for ash, gypsum, and limestone systems
Double Strand Drag Chains
Built for extreme-duty performance in wide conveyors or high-capacity systems.
- Doubled link rows for higher load distribution
- Handles large volumes of hot clinker, coal, slag
- Greater torque transmission and scraper width
- Used in clinker coolers, bottom ash, and mining conveyors
Application Advantages
- Suitable for fully enclosed conveying — reduces dust, spillage, and environmental exposure
- Low elongation rate — less downtime for retensioning or adjustment
- Compatible with Constromech and OEM sprockets and shafts
- Available with flight wear pads, high-temp bushings, and abrasion-resistant options
- Scraper designs tailored to material flow behavior and conveyor layout
Why Choose Constromech Drag Chains?
Custom-Engineered Options
- Flight design, pitch size, and strand type tailored to your application
- Choose from T-head, U-type, or flat bar scrapers (bolt-on or welded)
System Compatibility
- Ready-to-fit with all standard drag conveyor setups
- Retrofit options available with identical pitch and fitment specs
Complete Assembly Solutions
- Full kit with chains, flights, shafts, and sprockets
- Pre-assembled packages ensure fast installation with minimal shutdown
In-House Quality Assurance
- Proof-loading, NDT, and hardness tests performed on every lot
- Certified QA documents and traceability codes included
Fast Delivery & Engineering Support
- Standard models available with short lead times
- Application support: layout review, flight spacing, wear analysis
Industries Served
✅ Cement & Clinker Conveyors
✅ Power Plant Ash Handling
✅ Steel Plant Slag & Dust Conveying
✅ Gypsum, Lime, and Mineral Processing
✅ Aggregate & Quarry Belt Replacements
Your Chain, Your Load, Our Engineering
Constromech drag chains are built to outperform. Whether you’re designing a new system or upgrading a legacy line, we deliver engineered drag chain systems designed to withstand heat, wear, and heavy-duty operation — with full retrofit and lifecycle support.
Send us your layout or specs to get a custom match.
Let’s keep your process moving.
Single strand Drag Chain (Table)
| Pitch (p mm) | Height(h) (mm) | Eye Thickness (t) (mm) | Width (w) (mm) | Hole Diameter (mm) | Web Thickness (m1) (mm) | Web Thickness (m2) (mm) |
| 101.6 | 36 | 12 | 30 | 14 | 8 | 6 |
| 142 | 50 | 19 | 42 | 25 | 13 | 9 |
| 142 | 50 | 25 | 54 | 25 | 16 | 12 |
| 142 | 50 | 29 | 62 | 25 | 16 | 12 |
| 160 | 50 | 25 | 54 | 25 | 16 | 12 |
| 175 | 60 | 30 | 72/62 | 30 | 20 | 14 |
| 200 | 60 | 30 | 70 | 30 | 20 | 14 |
| 250 | 70 | 30 | 70 | 35 | 20 | 14 |
| 360 | 75 | 30 | 70 | 32 | 20 | 14 |
Double strand Drag Chain (Table)
| Pitch(p) (mm) | Height (h) (mm) | Thickness (t) (mm) | Width (w) (mm) | Hole Dia (mm) | Web Thickness (mm) (m1) | Web Thickness (mm)(m2) | Overall Width (mm) (n1) | Side Slot Width) (mm) (n2) |
| 142 | 50 | 19 | 42 | 25 | 13 | 9 | 70 | 13 |
| 142 | 50 | 29 | 62 | 25 | 16 | 12 | 82 | 13 |
| 175 | 60 | 30 | 72/62 | 30 | 20 | 14 | 98 | 16 |
| 200 | 50 | 25 | 60 | 25 | 20 | 14 | 82 | 13 |
| 200 | 60 | 30 | 70 | 30 | 20 | 14 | 100 | 16 |
| 250 | 60 | 30 | 70 | 30 | 20 | 14 | 100 | 16 |
