DONGHUA Chain Group is the most professional manufacturer of power transmission in China, manufacturing roller chains, industry sprockets, motorcycle sprockets, casting sprockets, different type of couplings, pulleys, taper bushes, locking devices, gears, shafts, CNC precision parts and so on.
We adopt good quality raw material and strict with DIN, ANSI, JIS standard ect, We have professional quality conrol team, complet equipment, advanaced technology. In 1999, Donghua obtained ISO9001 Certificate of Quality Assurance System, besides, the company also devotes itselt o environmental protection, In2002, it also obtained ISO14001 Certificate of Environment Management System.
Escalator Step Chain Instruction:
DH Chain NO Pitch Roller Diameter Width between inner plates Ultimate Tensile Strenth(kN/lbf)
ST131 131.33 80 27.0 180.0/40465
T131 131.33 80 27.0 180.0/40465
JJT131 131.33 80 27.0 123.0/27651
ST133 133.33 70 27.0 180.0/40465
JJT133 133.33 70 27.0 127.4/28640
ST133F1 133.33 80 27.0 180.0/40465
ST133F3 133.33 75 25.4 123.0/27651
ST133F4 133.33 76 27.0 180.0/40465
ST133F5 133.33 39.37 33.7 350.0/78683
ST133F6 133.33 39.37 33.7 170.0/38217
JJT131F1 131.33 76.20 23.6 90.0/20232
JJT131F2 131.33 76.20 23.6 90.0/20232
JJT131F3 131.33 76.20 23.6 123.0/27651
JJT131F4 131.33 76.20 23.6 123.0/27651
ST135F2 135.47 76.20 23.6 90/20232
| Product name |
Chain(DIN766) Roller Chains Escalator Step Chains |
| Materials Available |
1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420 |
| 2. Steel:C45(K1045), C46(K1046),C20 |
| 3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40) |
| 4. Bronze: C51000, C52100, C54400, etc |
| 5. Iron: 1213, 12L14,1215 |
| 6. Aluminum: Al6061, Al6063 |
| 7.OEM according to your request |
| Surface Treatment |
Annealing, natural anodization, heat treatment, polishing, nickel plating, chrome plating, znic plating,yellow passivation, gold passivation, satin, Black surface painted etc. |
| Products Available |
sprockt chains, pulley, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels gear rack) bearing, bearing seat, bushing, coupling, lock assembly etc. |
| Processing Method |
CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly |
| QC : |
Technicians self-check in production,final-check before package by professional Quality inspector |
| Size |
Drawings |
| Package |
Wooden Case/Container and pallet, or as per customized specifications |
| Certificate |
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009 |
| Advantage |
Quality first Service superior , Advanced equipment,Experienced workers,Perfect testing equipment |
| Lead Time |
15-25days samples. 30-45days offcial order |
![]()
![]()
![]()
![]()
![]()
![]()
![]()
FAQ:
1. Are you manufacturer or trade Company?
We are a factory founded in 1991 with trade team for international service.
2. What terms of payment you usually use?
T/T 30% deposit and 70% against document, Western Union, L/C at sight
3. what is your lead time for your goods?
Normally 45 days after confirmed order. 30 days could be available in low season for some items (during May to July), and 65 days during new year and hot season ( Jan to March).
4. Do you attend any Show?
We attend Hannover show in Germany, NMW in Austrilia, Canton fair, PTC, in China and many other special furniture shows.
){kind=link}
){kind=link}