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5 Ton High Lead Ball Screw Jacks

HWB65, HWB125, HWB245

Joyce 5-ton ball screw worm gear jacks lift and precisely position loads. Upright or inverted, these jacks operate at full capacity in tension or in compression and are available in Translating and KFTN designs. High lead HWB65, HWB125, and HWB245 jacks are highly efficient and require a brake or other external locking device to hold position.

1 1/2” diameter ball screw
High lead, 1”
Available in a variety of gear set ratios

2D/3D Drawings

Product Media

2D/3D DRAWINGS O & M Manual PRODUCT INFORMATION ORDERING INFORMATION TRANSLATING KTFN TYPICAL PLAN VIEW COLUMN LOAD CHART SCREW AND NUT APPLICATION SELECTION GUIDE JAX ONLINE

Available Models

1 TON 1 TON HEAVY-DUTY 2 TON 2 TON HIGH LEAD 2 TON REVERSE BASE 2 TON REVERSE BASE HIGH LEAD 5 TON 5 TON HIGH LEAD 10 TON 10 TON HIGH LEAD 10 TON HIGH DUTY 10 TON HEAVY DUTY HIGH LEAD 20 TON 30 TON 50 TON 50 TON REVERSE BASE

Ductile iron housing
Steel protection tube
Ball screw, alloy steel
Input shaft (worm), 4140 CDS

Sample Part Number:

Click on the part number to reveal additional informaton about jack designs and shaft codes.

Model Number

1-Ton Standard	2-Ton Standard	2-Ton Reverse Base Standard	5-Ton Standard	10-Ton Standard	10-Ton Heavy Duty	20-Ton Standard	30-Ton Standard	50-Ton Standard
WBL51 WBL201	WB62 WB122 WB242	RWB62 RWB122 RWB242	WB65 WB125 WB245	WBL810 WBL2410	WB810 WB2410	WB820 WB2420	WB1130 WB3230	WB1150 WB3250
1-Ton Heavy Duty	2-Ton High Lead	2-Ton Reverse Base High Lead	5-Ton High Lead	10-Ton Standard High Lead	10-Ton Heavy Duty High Lead			50-Ton Reverse Base
WB51 WB201	HWB62 HWB122 HWB242	RHWB62 RHWB122 RHWB242	HWB65 HWB125 HWB245	HWBL810 HWBL2410	HWB810 HWB2410			RWB1150 RWB3250

Important Note: *Not self-locking, may lower under load. Brake motors or external locking systems are required.
H: indicates High lead (2-ton, 5-ton and 10-ton only).
R: Reverse Base Jack (2-ton and 50-ton only).

Jack Configuration


U=Upright	I=Inverted

End Conditions


1=T1 (plain end)	2=T2 (load pad)	3=T3 (threaded end)	4=T4 (male clevis)

Jack Designs


S=Translating	K=Keyed for Non Rotation**	N=Traveling Nut	D=Double Clevis	R=KFTN Trunnion* T=Trunnion*

*Standard trunnion mounts available on 2-ton through 20-ton jacks.
**Keyed for non-rotation is not a standard option. Contact Joyce/Dayton with your requirements.

Ball Screw Jack Rise

Rise is travel expressed in inches and not the actual screw length.

Left Side Shaft Code	Right Side Shaft Code
XXXX=Remove STDX=Standard	XXXX=Remove STDX=Standard

Optional Shaft Codes

Screw Stops and Boots

Screw stops are optional on ball screw jacks. When specified, the closed height of the jack and/or the protection tube length may be increased. When boots are added to ball screw jacks, the closed height of the jack may be increased.

Geared Potentiometers

POTA=0-10V (IP65)
POTB=4-20MA (IP65)
POTC=0-10V w/2 switches*
POTD=4-20MA w/2 switches*
*Optional IP65 rating available

Encoders and Electronic Limit Switches

ENCX=Encoder
ELS2=2 Position Electronic Switch
ELS4=4 Position Electronic Switch
ELS6=6 Position Electronic Switch

Motor for Systems and Direct Drive

All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Other motor options are available. Specify the appropriate motor size from the chart on the right.
Refer to the "Additional Options" chart on the preceding page as needed.
Brake motors (M2) are recommended for jacks that are not self-locking, and jacks with double lead screws.
If the motor frequency will be varied to provide a "soft" start an inverter duty motor may be required.

Motors

Size	Code
1/4 HP	K
1/3 HP	A
1/2 HP	B
3/4 HP	C
1 HP	D
1-1/2 HP	E
2 HP	F
3 HP	L
5 HP	G
7-1/2 HP	H
10 HP	I
15 HP	J

Motor Mounts

Ordering Example:
MMA A (Motor code from chart above)

MMA=56C
MMB=140TC
MMC=180TC
MMD=210TC

Standard motor adapters are aluminum

Mechanical Limit Switches

Ordering Example:
LA (Models) 1(Number of DPDT Switches) 3(Available Positions)

Model	Code		Available Positions
LS7-402	LI	Number of DPDT Switches NOTE: Will always be 0 for LS7 models		1	2*	3	4	5	6*	7	8
LS8-402	LA		Left Side Shaft Options
LS8-504	LB
LS9-502	LC
LS9-503	LD		Right Side Shaft Options
LS9-504	LE
LS9-505	LF
LS9-506	LG		2, 3, 5, 10, 15, and 20 ton jacks are available with positions #1, #3, and #5 25, 30, 35, 50, 75, 100, and 150 ton jacks are available with positions #1, #4, #7, and #8 These positions are not standard. Contact Joyce/Dayton with your requirements.
LS9-507	LH

Additional Options

X=Standard Jack, no additional options
S=Additional Specification Required (comment as necessary)

Anti-Backlash

A=Split Nut
A90=A90 Design
A95=A95 Design

Protective Boots

B=Protective Boot
D=Dual Protective Boot

Finishes

F1=Do Not Paint
F2=Epoxy Paint
F3=Outdoor Paint Process

Motor Options

M1=Less Motor
M2=Brake Motor
M3=Single Phase Motor (120VAC)
M4=50Hz Motor

Grease/Seals

H1=High Temperature Operation
H2=Food Grade

Screw Stops

ST0=Extending
ST1=Retracting
ST2=Both

Specify as many options as needed

Model	Capacity	Screw Diameter (inches)	Thread Pitch/Lead	Worm Gear Ratio	Worm Shaft Turns for 1" Travel	Tare Torque (Inches Lbs.)	Starting Torque (Inches Lbs.)	Operating Torque (Inches Lbs.)	Efficiency Rating % Approx	Screw Torque (Inches Lbs.)	Worm Holding (Inch Lbs.)	Ball Nut Life at Rated Load (Inch Screw Travel x 1000)	Basic Jack Weight (Lbs.)	Jack Weight per Inch Travel(Lbs.)
HWB65	5 ton	1 1/2	1.0	6:1	6	10	.065W*	.052W* @ 300 RPM	51.1	.177W*	.033W*	512	42	0.7
HWB125	5 ton	1 1/2	1.0	12:1	12	10	.041W*	.029W* @ 300 RPM	45.7	.177W*	.020W*	512	42	0.7
HWB245	5 ton	1 1/2	1.0	24:1	24	10	.029W*	.018W* @ 300 RPM	37.2	.177W*	.014W*	512	42	0.7

Important Note: Ball Screw Jacks are not self-locking. Brake motors or external locking systems are required.
(R): Reverse Base Jack.
*W: Load in pounds.
Tare Torque: Initial torque to overcome seal and normal assembly drag. (This value must be added to starting torque or operating torque values.)
Starting Torque: Torque value required to start moving a given load (dissipates to operating torque values once the load begins moving).
Operating Torque: Torque required to continuously raise a given load at the input RPM listed. NOTE: If your actual input RPM is 20% higher or lower than the listed RPM, please refer to our JAX program to determine actual torque values at your RPM.
Screw Torque: Torque required to resist screw rotation (Translating Design Jacks) and traveling nut rotation (Keyed for Traveling Nut Design Jacks).
Worm Holding Torque: Torque required to prevent input shaft (worm) from backdriving.
Lead: The distance traveled axially in one rotation of the lifting screw.
Pitch: The distance from a point on a screw thread to a corresponding point on the next thread, measured axially.

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Ball Screw Jacks 5 Ton High Lead