Double chain link DIN 22253 Open Link

conveyor chain

Short description
Mining chain shackles, also known as open connection links, manufactured in accordance with DIN 22253, PN-G-46696 and MT/T71-1997. Designed for underground mining and scraper conveyors. Available in single-hole or double-hole configurations and in nominal sizes 14x50 to 30x108.

Introduction
Outboard chain connectors DIN 22253.

Dimension (table)
Columns: Size (mm) | a (mm) | t (mm) | c (mm) | b (mm) | e (mm) | l1 (mm) | m (mm) | n (mm) | p (mm) | f (mm) | g (mm)
14x50 | 15 (+0.7/-0.5) | 50 (+0.8/-0.3) | 79 ±1 | 17 +0.5 | 78 | 17.5 (+1/0) | 15 | 32 | 17 | 51 | 29
18x64 | 19 (+1.0/-0.5) | 64 (+0.9/-0.3) | 101 ±1 | 21 +0.5 | 100 | 20.5 (+1/0) | 19 | 43 | 37 | 55 | 40
19x64.5 | 20 (+1.0/-0.5) | 64.5 (+0.9/-0.3) | 105 ±1 | 21 +0.5 | 100 | 20.5 (+1/0) | 20 | 43 | 20 | 55 | 41
22x86 | 23 (+1.0/-0.5) | 86 (+1.3/-0.4) | 132 ±2 | 25 +1.0 | 133 | 24.5 (+1/0) | 23 | 52 | 44 | 75 | 46
24x86 | 25 (+1.0/-0.5) | 86 (+1.3/-0.4) | 136 ±2 | 25 +1.0 | 133 | 26 (+1/0) | 25 | 53 | 44 | 78 | 55
26x92 | 27 (+1.0/-0.5) | 92 (+1.4/-0.5) | 146 ±2 | 28 +1.0 | 141 | 28 (+1.5/0) | 27 | 58 | 44 | 85 | 56
30x108 | 32 (+1.0/-0.5) | 108 (+1.6/-0.5) | 172 ±2 | 31 +1.0 | 159 | 32 (+1.5/0) | 32 | 70 | 44 | 100 | 59

Mechanical properties (table)
Columns: Size (mm) | Test Force Grade B (kN) | Test Force Grade C (kN) | Test Force DIN22253 (kN) | Breaking Force Grade B (kN) | Breaking Force Grade C (kN) | Breaking Force DIN22253 (kN)
14x50 | 135 | 180 | 185 | 170 | 225 | 212
18x64 | 230 | 300 | 305 | 290 | 370 | 351
19x64.5 | 26 | 325 | 340 | 325 | 405 | 391
22x86 | / | 440 | 456 | 550 | 525 | 550
24x86 | 410 | 490 | 507 | 510 | 650 | 588
26x92 | / | / | / | 595 | / | 690
30x108 | / | / | 750 | / | / | 869

Standards
DIN 22253
PN-G-46696
MT/T71-1997

Characteristics / technical specifications

• Product type: Mining chain shackles / open connection links.
• Applicable standards: DIN 22253, PN-G-46696, MT/T71-1997.
• Primary applications: underground mining, scraper conveyors.
• Customization: available with double holes or single holes.
• Available nominal sizes (examples shown in tables): 14x50, 18x64, 19x64.5, 22x86, 24x86, 26x92, 30x108.
• Detailed dimensional tolerances and mechanical test/breaking forces are provided per size in the tables above.