50 Ton Machine Screw Jacks

Page Header

50 Ton Machine Screw Jacks

UL1050, UL2050

UNI-LIFT series 50 ton machine screw jacks offer precise positioning, uniform lifting speeds and capacity up to 50 Tons. Standard model configurations include upright or inverted units with translating or rotating lifting screws. End configurations include load pad, plain, threaded, and clevis ends.

 

Contact Joyce for 2D/3D models and drawings:

[email protected]

(937) 294-6261

(800) 523-5204

2D/3D Drawings

Login to access 2D/3D Drawings

Product Media

2D/3D DRAWINGSINSTRUCTION SHEET UNI-LIFT CATALOG PRODUCT INFORMATION
jack

Available Models

UL 1500 lbs. UL 1 TON UL 2 TON UL 5 TON UL 10 TON UL 20 TON UL 30 TON UL 50 TON

Sample Part Number:

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

Model Number

1500 Lb 1 Ton 2 Ton 5 Ton 10 Ton 20 Ton 30 Ton 50 Ton
DUL1500 UL51 UL62 UL55 UL610 UL820 UL930 UL1050
UL1500 UL101 UL82 UL125 UL1210 UL1620 UL1830 UL2050
    UL122 UL245        

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.

Machine 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 machine screw jacks. When specified, the closed height of the jack and/or the protection tube length may be increased. When boots are added to machine screw jacks, the closed height of the jack may be increased.

Mechanical Counters

CNT0=0.001" Increments
Note: Contact Joyce/Dayton for availability and options.

Hand Wheels

HW04=4" dia
HW06=6" dia
HW08=8" dia
HW10=10" dia
HW12=12" dia

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 Liit Switches

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

Motor for Systems and Direct Drives

  • 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 (Inch Lbs.) Starting Torque (Inch Lbs.) Operating Torque (Inch Lbs.) Efficiency Rating % Approx Screw Torque (Inch Lbs.) Basic Jack Weight (Lbs.) Jack Weight per Inch Travel (Lbs.)
DUL1500 1500 Pound 0.625 .125/.25 5:1 20 1 0.030W* 0.022W* @500 RPM 52.8 0.087W* 2 0.1
UL1500 1500 Pound 0.625 0.125 5:1 40 2 0.024W* 0.016W* @500 RPM 37.5 0.065W* 2 0.1
UL51 1 Ton 0.750 0.25 5:1 20 3 0.034W* 0.023W* @500 RPM 50.2 0.098W* 9 0.2
UL101 1 Ton 0.750 0.25 10:1 40 3 0.021W* 0.014W* @500 RPM 41.1 0.098W* 9 0.2
UL62 2 Ton 1.000 0.25 6:1 24 4 0.035W* 0.022W* @500 RPM 43.3 0.120W* 13 0.4
UL82 2 Ton 1.000 0.25 8:1 32 4 0.029W* 0.018W* @500 RPM 40.1 0.120W* 13 0.4
UL122 2 Ton 1.000 0.25 12:1 48 4 0.023W* 0.014W* @500 RPM 34.1 0.120W* 13 0.4
UL55 5 Ton 1.500 0.333 5:1 16 5 0.052W* 0.034W* @300 RPM 44.7 0.175W* 23 0.7
UL125 5 Ton 1.500 0.333 12:1 36 5 0.032W* 0.019W* @300 RPM 30.5 0.175W* 23 0.7
UL245 5 Ton 1.500 0.333 24:1 72 5 0.024W* 0.013W* @300 RPM 15.7 0.175W* 23 0.7
UL610 10 Ton 1.750 0.333 6:1 18 7 0.055W* 0.035W* @200 RPM 35.3 0.197W* 47 0.9
UL1210 10 Ton 1.750 0.333 12:1 36 7 0.036W* 0.021W* @200 RPM 26.5 0.197W* 47 0.9
UL820 20 Ton 2.500 0.500 8:1 16 9 0.060W* 0.038W* @200 RPM 36.4 0.285W* 90 1.8
UL1620 20 Ton 2.500 0.500 16:1 32 9 0.039W* 0.023W* @200 RPM 27.4 0.285W* 90 1.8
UL930 30 Ton 2.750 0.5 9:1 18 10 0.057W* 0.035W* @200 RPM 34.4 0.307W* 103 2.1
UL1830 30 Ton 2.750 0.5 18:1 36 10 0.037W* 0.022W* @200 RPM 25.8 0.307W* 103 2.1
UL1050 50 Ton 4.250 0.667 10:1 15 12 0.076W* 0.046W* @150 RPM 31.4 0.463W* 230 5
UL2050 50 Ton 4.250 0.667 20:1 30 12 0.049W* 0.029W* @150 RPM 23.5 0.463W* 230 5
 
Request A Quote
Locate Serial Number
One file only.
512 MB limit.
Allowed types: gif, jpg, jpeg, png, bmp, eps, tif, pict, psd, txt, rtf, html, odf, pdf, doc, docx, ppt, pptx, xls, xlsx, xml, avi, mov, mp3, mp4, ogg, wav, bz2, dmg, gz, jar, rar, sit, svg, tar, zip.

Request a quote for products and repair parts:

  • New Product Quote: Visit the product sections on this website and select or construct a part number and quantity of the product you wish to purchase.
  • Reorder a Product: Include the previous PO or serial number along with the quantity you need.
  • Repair Parts: View the product manual or exploded view to identify the components that are needed. Locate the product serial number and include it in your correspondence with Customer Service.

If you need us to repair your product, request a Returned Goods Authorization (RGA) number by email, phone, or simply fill out the form above and mention "RGA" in message box.

CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.

By submitting this form, I agree to the Joyce/Dayton Website Usage Terms and Conditions, Privacy Policy, and that a Joyce/Dayton representative may contact me.