Electric Cylinders 20 Ton

ECAL820, ECAL2420, ECAM820, ECAM2420, ECAH820, ECAH2420, ECBL820, ECBL2420

These Joyce electric cylinders lift and position up to 20 tons, achieve travel speeds up to 109 inches per minute, and raise loads up to 100 inches. They are well suited for industrial environments where protection of the lifting screw mechanism is critical and low maintenance is desired. Requiring only electric power, Joyce electric cylinders may also be used in place of hydraulic cylinders, eliminating the cost and potential for leaks associated with hydraulic systems.

  • 20 ton capacity available in a variety of ratios and leads
  • Standard, Motor mount, and ComDRIVE models are available
  • Ground and hard-chrome plated inner tubes, alloy steel input shafts
  • All models with efficiencies ≥ 30% require a brake motor to hold position
  • Joyce Dayton can customize electric cylinders to your specifications

Complete dynamic speed/load ratings and maximum rise information can be viewed on our quick reference chart. Both acme (ECA) and ball screw (ECB) electric cylinder actuator models are designed to operate at the charted capacities under both tension and compression loading.

Sample Part Number:

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

Model Number

2.5-Ton
ACME Screw
2.5-Ton
Ball Screw
3-Ton
ACME Screw
3-Ton
Ball Screw
5-Ton
ACME Screw
5-Ton
Ball Screw
10-Ton
ACME Screw
10-Ton
Ball Screw
20-Ton
ACME Screw
20-Ton
Ball Screw
ECAL242.5

ECAH62.5
ECAH122.5
ECAH242.5

ECBL62.5
ECBL122.5
ECBL242.5

ECBM62.5

ECBH62.5

ECAL63
ECAL123
ECAL243
ECBL63
ECBL123
ECBL243

ECBH63
ECBH123
ECBH243

ECAL65
ECAL245

ECAM65
ECAM125
ECAM245

ECAH65
ECAH125
ECAH245

ECBL65
ECBL125
ECBL245

ECBM65
ECBM125
ECBM245

ECBH65
ECBH125
ECBH245

ECAL810
ECAL2410

ECAM810
ECAM2410

ECAH810
ECAH2410

ECBL810
ECBL2410

ECBM810
ECBM2410

ECBH810
ECBH2410

ECAL820
ECAL2420

ECAM820
ECAM2420

ECAH820
ECAH2420

ECBL820
ECBL2420

Important Note: Electric Cylinders that are ≥ 30% efficient may lower under load. Brake motors or external locking systems are required.

Tube End Conditions

Base Designs

Cylinder Rise

Rise is travel expressed in inches and not the actual tube length. The allowable travel for each unit is listed in the Quick Reference section. Allowable lengths differ for vertical and horizontal mounting.

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

Not recommended for cylinders that are ≥ 30% efficient.

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

ComDrive Reducers
Ordering Example: P2 (Moutning Positions) A (Ratio) C (Motor code from chart below)
Mounting Positions Ratio
Code P1 P2 P3 P4

5:1
Code A

7.5:1
Code B

10:1
Code C

Left
Side
Shaft
Positions
Right
Side
Shaft
Positions

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

Motor Mounts

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

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

Standard motor adapters are aluminum

All standard motors are 3-phase, 208-230/460 VAC or 230/460 VAC. Specify the appropriate motor size from the chart above. Refer to the "Additional Options" chart on the preceding page as needed. Brake motors are required for electric cylinders that are more than 30% efficient. Contact Joyce/Dayton options that are not listed.

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 3 5
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
  • 2.5, 3, 5, 10, and 20 Ton Electric Cylinders are available with positions #1, #3, and #5
LS9-507 LH

To order additional options, use these part numbers

Female Clevis Bracket
FCB-30
FCB-100
FCB-200

Clevis Pin w/ retaining rings
CP-30
CP-100
CP-200

Female Rod Clevis
FRC-30
FRC-100
FRC-200

Additional Options

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

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
  • Specify as many options as needed
ModelStatic CapacityScrew DiameterThread Pitch/LeadWorm Gear RatioWorm Shaft Turns for 1" TravelTare Torque (Inches Lbs.)Starting Torque (Inches Lbs.)Operating Torque (Inches Lbs.)Translating Tube Torque (Inches Lbs.)Base WeightWeight
per Inch Travel
ECAL820 20 ton 2 1/2 .25 pitch
ACME 2C
8:1 32 60 .066W* .044W* @ 
200 RPM
.194W* 124 4.9
ECAL2420 20 ton 2 1/2 .25 pitch
ACME 2C
24:1 96 40 .035W* .019W* @ 
200 RPM
.194W* 124 4.9
ECAM820 20 ton 2 1/2 .5 pitch
ACME 2C
8:1 16 60 .075W* .052W* @ 
200 RPM
.227W* 124 4.7
ECAM2420 20 ton 2 1/2 .5 pitch
ACME 2C
24:1 48 40 .039W* .022W* @ 
200 RPM
.227W* 124 4.7
ECAH820 20 ton 2 1/2 .375 pitch 
.75 lead
ACME 2C
8:1 10.67 60 .088W* .062W* @ 
200 RPM
.273W* 124 4.8
ECAH2420 20 ton 2 1/2 .375 pitch 
.75 lead
ACME 2C
24:1 32 40 .046W* .027W* @ 
200 RPM
.273W* 124 4.8
ECBL820 20 ton 2 1/4 .5 lead ball 8:1 16 60 .026W* .020W* @ 
200 RPM
.089W* 164 4.5
ECBL2420 20 ton 2 1/4 .5 lead ball 24:1 48 40 .014W* .009W* @ 
200 RPM
.089W* 164 4.5

 

Important Note: Electric cylinders that are ≥ 30% are not self-locking. Brake motors or external locking systems are required.
*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. 
Translating Tube Torque: Torque required to resist tube rotation.
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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