Round Link Chain
Precision-engineered round link chains for bucket elevators and chain conveyors in abrasive, high-load and high-temperature duty — built to DIN 764, DIN 766 and customer-specific configurations.
- DIN 764
- DIN 766
- Case-hardened
- 32 standard sizes
- Made to your drawing
Dimensions
Find your size
Pick a size to see its dimensions, then request a quote for exactly that size.
Selected — Round link chain
10 × 28
- Inside width (m1) mm
- 12
- Outside width (m2) mm
- 36
- DIN chain
- 766
Size not listed? We manufacture to your drawing or sample —send us your requirement.
WS = works standard.
View all 32 sizes (full table)
| Chain size (Ø × pitch) mm | Inside width (m1) mm | Outside width (m2) mm | DIN chain |
|---|---|---|---|
| 10 × 28 | 12 | 36 | 766 |
| 10 × 35 | 14 | 36 | 764 |
| 13 × 45 | 18 | 47 | 764 |
| 14 × 50 | 16.3 | 47 | WS |
| 16 × 45 | 19.2 | 58 | 766 |
| 16 × 56 | 22 | 58 | 764 |
| 18 × 50 | 21.6 | 65 | 766 |
| 18 × 63 | 24 | 65 | 764 |
| 19 × 75 | 22 | 63 | WS |
| 20 × 56 | 24 | 72 | 766 |
| 20 × 70 | 27 | 72 | 764 |
| 22 × 86 | 26 | 74 | WN |
| 23 × 64 | 27.6 | 83 | 766 |
| 23 × 80 | 31.6 | 83 | 764 |
| 26 × 73 | 31.2 | 94 | 766 |
| 26 × 91 | 35 | 94 | 766 |
| 26 × 100 | 31 | 87 | WS |
| 28 × 78 | 33.6 | 101 | 766 |
| 28 × 98 | 36 | 101 | 764 |
| 30 × 84 | 36 | 108 | 766 |
| 30 × 105 | 39 | 108 | 764 |
| 30 × 120 | 36 | 102 | WS |
| 33 × 92 | 43 | 119 | 766 |
| 33 × 115 | 43 | 119 | 764 |
| 34 × 136 | 39 | 113 | WS |
| 36 × 101 | 43.2 | 130 | 766 |
| 36 × 126 | 47 | 130 | 764 |
| 38 × 144 | 44 | 127 | WS |
| 39 × 109 | 51 | 140 | 766 |
| 39 × 136 | 51 | 140 | 764 |
| 42 × 118 | 50 | 151 | 766 |
| 42 × 147 | 55 | 151 | 764 |
Technical Highlights & Construction Features
Chain Profile
Fully round cross-section forged from fine-grain alloy steel; ensures uniform load transfer and eliminates sharp corners that cause stress risers
Link Welding
Precision flash butt-welded and 100% crack-tested; each weld is proof-loaded and normalized to relieve residual stress
Heat Treatment
Core hardened and surface tempered (carburized or quenched & tempered); typical hardness range: 38–45 HRC for high wear resistance
Pitch Accuracy
Tight pitch tolerances (±0.2 mm) for smooth meshing with drive and idler sprockets; minimizes chain jump and uneven tensioning
Elongation Control
Controlled pre-stretching during manufacturing limits initial wear-related elongation in service
Proof Load & Breaking Load
Every batch proof-tested to 2× working load; breaking strength up to 3.5× rated load depending on chain size and grade
Application Advantages in Bucket Elevators & Chain Conveyors
- True round profile ensures continuous contact with sprockets and reduces point loading
- Shock-resistant design handles impulse loads from heavy buckets and abrupt starts
- Low wear rate extends service intervals and reduces unplanned shutdowns
- Easy integration with DIN-compliant sprockets, shackles, and buckets
- Self-cleaning geometry minimizes buildup of fine or sticky materials
- Suitable for conveying hot, coarse, or highly abrasive materials such as clinker, coal, slag, limestone, and raw meal
Why Choose Constromech Chains?
Constromech is not just a supplier — we’re your engineering partner in elevating performance:
- Custom Solutions
- Tailor-made chains for non-standard pitches, high-lift elevators, or corrosive atmospheres
- Available in grades up to G100 and boron-alloy steels for superior fatigue strength
- OEM Compatibility
- Full backward compatibility with existing OEM or similar installations
- Chains optimized to match your drive sprocket geometry, bucket pitch, and shackle design
- In-House Quality Control
- All chains undergo NDT, load testing, hardness verification, and dimensional inspection
- Delivered with material certificates, QA reports, and traceability records
- Inventory & Turnaround
- Standard DIN sizes always in stock (10×28 up to 38×144 mm)
- Custom chains delivered within 2–4 weeks including heat treatment and proof testing
- End-to-End Support
- Assistance in chain selection, drive redesign, wear analysis, and service life prediction
- Available with welded attachments, pin-type bucket connectors, or adapter links
Industries Served
- Cement & Clinker Plants
- Thermal Power Stations
- Fertilizer & Chemical Plants
- Steel & Foundry Units
- Mining & Quarry Operations
Let Constromech engineer your next upgrade.
Tailor-made sizes as per client specifications and drawings are available
Other Round Link Chain Elevator components
Sprocket & Shaft Assembly
55 sizesComplete, ready-to-install drive and tail sprocket assemblies for chain bucket elevators and chain conveyors — machined, balanced and test-mounted so your crew can fit, torque and run.
View sizes & details
Chain & Bucket Attachment (Shackles)
19 sizesPrecision-forged chain shackles to DIN 745 and DIN 5699 — the critical link between chain and bucket in heavy-duty chain bucket elevators.
View sizes & details
Elevator Buckets
48 sizesRugged fabricated buckets in high-tensile steel for chain and belt bucket elevators, precision-formed for uniform material discharge.
View sizes & details
Boot Bearing
6 sizesBoot bearing assemblies that support and guide the boot shaft in chain and belt bucket elevators — ready-to-fit bearing blocks with matching bushes.
View sizes & details
Wheel Rim & Shaft Assembly
34 sizesFit-and-run wheel-rim and shaft packages for chain bucket elevators. Toothless pocket wheels with modular steel segments cradle each link to cut point wear, shock loading and noise.
View sizes & detailsNeed round link chain for your plant?
Send us your drawing or requirement — we respond within one business day.