Worm Gear Screw Jack High Performance, For Machinery Use, Feature : Corosion Resistant, Low Maintenance

MaterialAlloy Steel
FinishingNon Polished
Lifting Capacity0-100kn
ApplicationMachinery Use
FeatureCorosion Resistant, High Strength, Low Maintenance
Supply TypeManufacturer, Exporter, Supplier, Retailer
Preferred Buyer Location All over the world

Product Details

MaterialAlloy Steel
ApplicationMachinery Use
FinishingNon Polished
FeatureCorosion Resistant, High Strength, Low Maintenance
Lifting Capacity0-100kn

In order to produce quality products, we make use of superior grade raw materials. Our quality auditors strictly check the raw materials against varied quality parameters before procurement. By making use of premium packaging material, we can guarantee zero damage during transit. Moreover, our packaging experts stringently check the entire lot prior to final dispatch.
Product Details :

High Performance Model WGJ
9 Different Sizes
Lifting Capacities 5 kN to 1000 kN
Drive Motor Speed up to 3000 rpm
Self Locking trapezoidal Screw
Worm gear in two ratios, Nominal and Slow
Top and Bottom Guide bushes for Lifting Screw
Worm Wheel hobbed for optimum blue contact
Oil filled, Worm Gear Splash lubricated
Higher heat dissipation due to ribbed construction
Can be inverted

Materials of Construction :

Worm Shaft Case carburized Steel, hardened and ground thread profile
Trapezoidal Screw Shaft Cr-Mo Steel, hardened & tempered
Housing Alloy aluminum for 5 and 10 kN, all higher sizes in SG Iron
Worm Wheel and travelling nut in Aluminium Bronze

Screw Rod Axially

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HP Head Type

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Swivel Base( SB )

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High Efficiency Worm Gearbox WGJ 0.5/31 To WGJ 100/200

Gearbox Type	Standard High Efficiency Worm Gearbox WGJ
Nominal size, WGJ	0.5/31		'1/36		2.5/50		'5/63		'10/80
Max lifting capacity, kN	5		10		25		50		100
Lifting screw Tr	18x4		22x5		40x8		50x9		60x12
Normal N, Slow L	N	L	N	L	N	L	N	L	N	L
Ratio	4:1	16:1	5:1	20:1	6:1	24:1	7:1	28:1	8:1	32:1
Lift per turn of worm, at ratio, mm	1	0.25	1	0.25	1.3	0.33	1.28	0.32	1.5	0.38
Total efficiency, at ratio	0.33	0.22	0.33	0.22	0.31	0.2	0.28	0.17	0.19	0.13
Screw efficiency	0.427		0.433		0.4		0.37		0.4
Screw torque at max lifting capacity, Nm	7.5		18.4		79.7		192		478
Worm torque at max lifting capacity, at ratio Nm	2.4	0.9	4.8	1.8	17.3	6.7	36.7	14.8	79.7	32
Max permissible torque at worm shaft, Nm	12.5		29.4		48.5		165		400
Weight without lifting screw, and protection tube, kg	2		4		13		25		47
Weight per 100 mm of screw and protection tube, kg	0.16		0.23		0.82		1.3		1.8

High Efficiency Worm Gearbox WGJ 0.5/31 To WGJ 100/200

Gearbox Type	Standard High Efficiency Worm Gearbox WGJ
Nominal size, WGJ	20/200		35/125		50/140		100/120
Max lifting capacity, kN	200		350		500		1000
Lifting screw Tr	70x12		100x16		120x16		160x20
Normal N, Slow L	N	L	N	L	N	L	N	L
Ratio	8:1	32:1	10.67:1	32:1	10.67:1	32:1	13.3:1	40:1
Lift per turn of worm, at ratio, mm	1.5	0.375	1.5	0.5	1.5	0.5	1.5	0.5
Total efficiency, at ratio	0.27	0.170	0.25	0.17	0.21	0.14	0.2	0.14
Screw efficiency	0.36		0.34		0.3		0.28
Screw torque at max lifting capacity, Nm	1061		2598		4236		11115
Worm torque at max lifting capacity, at ratio Nm	175	69.000	337	166	556	277	1163	576
Max permissible torque at worm shaft, Nm	705		975		1640		4260
Weight without lifting screw and protection tube, kg	74		145		335		870
Weight per 100 mm of screw and protection tube kg	2.52		5.2		7.7		13.8

Note : Total efficiency is given for input rpm of 300. For other rpm multiply total efficiency by factor C1.

High Efficiency Worm Gearbox WGJ 0.5/31 To WGJ 100/200

Input rpm	100	300	600	1000	1500	3000
Factor C1	0.96	1	1.05	1.06	1.08	1.12

Ordering Example 01

Ton	KN	Model
0.5	5	WGJ 0.5/31
1	10	WGJ 1/36
2.5	25	WGJ 2.5/50
5	50	WGJ 5/63
10	100	WGJ 10/80
20	200	WGJ 20/200
35	300	WGJ 35/125
50	500	WGJ 50/140
100	1000	WGJ 100/200

Ordering Example 02

Accessories	Code
Hand Wheel	HW
Hand Crank	HC
Limit Switch	LS
Proximity Switch	PS
Bellow Boot	BB
Swivel Base	SB
Brake Motor	BM
Double Clevis	DC
Antibacklash	AB
Antiturn	AT
Antibacklash + Antiturn	AB + AT

Example: Size 5 Ton, Type1, Ratio 7:1, Lift 200mm, Closed height 249 (Ref dim. Sheet B+Zz+g) Head Type II, Antibacklash, motor mounted to right (Closed height will alter with Bellow boots & lift)