NT Type Chain Block

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Features

Other Standard Setting

Precision gear for long working life
Compact design for limited headroom applications
High strength stel frame and gear case buit to be durable for the rugged needs of construction and maintenance rigging
Heat-treated spur gear eficiently 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 Setting

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 ofload 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 lif(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 ifting 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 lif(kg)		7.3	9.8	9.8	14.2	19.6	28.3	50