WFB is a kind of compensation chain with excellent performance,it can insure the elevator working under an ideal and stable state.  It is made from electric -welding anchor chain which covered with elastic rubber and frm its unique functions, and has the following strong traits: greater elasticity, smaller bending radius, flame restardant, antiaging, wider temperature adaptong range, etc. after using this kind of compensation chain, the operation of your elevator will be stable and smoothly, and working with low noise. WFB is used for elevator with rated speed of speedm of below and equal to 2.5m/s.

WFC is evenly coated by a layer of PVC liquid out of the high quality electric welding chain, heated and solidfied, and finally forming cmpensatin chain into chain-in-chain shape. And clear the gaps between the every links, with no noise,. WFC overcomes the shortcoming that PVC-coated chain is easily tore. It is used for the elevator with rated speed of below and equal to 1.75m/s.

Model No.	Unit weight (kg/m)	External diameter (mm)	Bending Diameter (±50) (mm)	Diameter of link (mm)	Broken load (KN)	Maximum Hang Length (m)
WFC050	0.88±0.20	21.0±2.0	280.0	6.0±0.5	≥15.63	154
WFB075	1.12±0.20	26.0±2.0	280.0	7.0±0.5	≥18.13	165
WFB100	1.49±0.20	29.0±2.0	300.0	8.0±0.5	≥23.68	162
WFB125	1.88±0.20	32.0±2.0	300.0	9.0±0.5	≥29.97	162
WFB150	2.24±0.20	36.0±2.0	300.0	10.0±0.5	≥37.00	168
WFB200	2.98±0.20	39.0±2.0	300.0	11.0±0.5	≥44.70	153
WFB225	3.20±0.20	43.0±2.0	300.0	12.0±0.5	≥53.28	169
WFB250	3.73±0.20	46.0±2.0	300.0	13.0±0.5	≥62.53	171
WFB300	4.47±0.20	50.0±2.0	320.0	14.0±0.5	≥69.93	159
WFB350	5.22±0.20	53.0±2.0	320.0	15.0±0.5	≥83.25	162
WFB400	5.96±0.20	56.0±2.0	320.0	16.0±0.5	≥94.72	162

WFF is brand-new designed compensation chain, with the unique design concept makes it has greater safety factor.  WFF us a flat compensation chain that consists of two strands of wire ropes and hemp ropes which distributed in line and outside is covered by PVC.  Furthermore, WFFalso has other strong traits: greater elasticity, smaller benging radius, flame retardant, antiaging, wider temperature adaption range,etc. After using thin kind of compensation chain, the operation of your elevator will stable and smoothly and working with low noise.

Model No.	Unit weight (m/s)	Wire Rope Diameter(mm)	Hemp Rope Diameter(mm)	Bending Diameter(mm)	Outside Width(mm)	Outside Thickness(mm)	Broken Load(≥KN)
WFF100	1.49±0.20	2×5±0.5	2×5±0.5	300	52±2	15±1.5	≥18.0
WFF150	2.24±0.20	2×5±0.5	2×5±0.5	350	75±2	15±1.5	≥18.0
WFF100	2.98±0.20	2×6±0.5	2×7±0.5	350	95±2	15±1.5	≥18.0