VT Type Chain Block

Features

Standard Features

• Precision gear for long working life
• Compact design for limited headroom applications
• High strength steel frame and gear case built to be durable for the rugged needs of construction and maintenance rigging
• Heat-treated spur gear efficiently designed to provide smooth load handling and low hand chain pull
• Reinforced double pawl brake system and larger diameter of pawl springs ensure reliable brake
• High strength grade 80 alloy steel load chain
• Open frame design for self-cleaning, quick load sheave inspection and easy maintenance

Optional Features

• Overload protection system
• Caged roller bearings on load sprocket
• Zinc plated load chain
• Casting latch
• Cr plated side plate assemblies
• Thrust bearings in bottom hook assembly

Specifications

Capacity(ton)		0.25	0.5	1	1.5	2	3	5
Standard lifting height(m)		3	2.5	2.5	2.5	3	3	3
Running test load (KN)		3.06	6.3	12.5	18.8	25	37.5	62.5
Effort required to lift rated load (N)		114	231	309	320	320	360	414
Strands of load chain		1	1	1	1	1	2	2
Diameter of load chain(mm)		4	5	6	7.1	8	7.1	9
Dimensions(mm)	A	110	115	143	148	152	148	181
	B	100	136	156	182	198	182	266
	C	230	270	317	399	414	465	636
	D	25	25	27	34	36	38	48
Net weight(kg)		4.4	7	10.5	17	18	22	40
Extra weight per meter of extra lift(kg)		0.9	1.5	1.8	2.1	2.3	4.2	4.6

Capacity(ton)		7.5	10	12	15	20	30	50
Standard lifting height(m)		3	3	3	3	3	3	3
Running test load (KN)		94	125	150	187.5	250	375	625
Effort required to lift rated load (N)		420	420	420	430	420×2	450×2	450×2
Strands of load chain		3	4	4	6	8	12	22
Diameter of load chain(mm)		10	10	10	10	10	10	10
Dimensions(mm)	A	181	181	181	181	192	330	410
	B	365	365	365	485	630	670	900
	C	798	798	798	920	890	1000	1950
	D	57	57	57	84	84	84	130
Net weight(kg)		52	70	80	125	162	228	1085
Extra weight per meter of extra lift(kg)		7.3	9.8	9.8	14.2	19.6	28.3	50