Linear Actuator LA28 Compact
Data Sheet

LINAK.COM/MEDLINE-CARELINELA28C |2Contents
Introduction��������������������������������������������������������������������������������������������������������������������������������� 3Features and options������������������������������������������������������������������������������������������������������������������ 3Usage������������������������������������������������������������������������������������������������������������������������������������������� 3
Technical specifications��������������������������������������������������������������������������������������������������������������� 4
LA28 Compact with standard motor������������������������������������������������������������������������������������������ 4
LA28 Compact with “S” motor������������������������������������������������������������������������������������������������� 4
LA28 Compact with 12V motor�������������������������������������������������������������������������������������������������� 5Ordering example����������������������������������������������������������������������������������������������������������������������� 6Dimensions���������������������������������������������������������������������������������������������������������������������������������� 7
LA28 Compact with cover��������������������������������������������������������������������������������������������������������� 9
LA28 Compact with IPX6 housing��������������������������������������������������������������������������������������������� 9Installation dimensions������������������������������������������������������������������������������������������������������������ 10

LA28C |Introduction
The LA28 Compact is a small and powerful actuator designed for use insystem solutions for healthcare equipment or industrial applications. Idealapplications are for example wheelchairs, treatment chairs, patient lifts orbeds.

Some benefits of the LA28 compact are:• Compact design and small installation dimensions• Metal back fixture makes the actuator capable of withstanding high static pull force and ensures high safety• Quiet operation• 3500N in push (with strong motor) and 2000N in pull
• Options such as spline and safety nut to ensure safe operation at all times.

Features and options• 12V / 24V DC permanent magnet motor• Thrust up to 3500 N (with strong motor)• Stainless steel piston rod• Elegant and compact design with small installation dimensions• Colour: black• Low noise level• Available with extra powerful motor (strong motor), increases speed and strength• Brake - increase self-locking ability for LA28C actuators with 4, 6, 9 or 12mm pitch with or without strong motor• Reed-switch (LA28C = 8 pulses/spindle rev. and LA28C with strong motor = 6 pulses/Spindle rev.)• Splines function (the actuator can only push)• Safety nut in push direction only 0.2 m and 0.4 m coiled cable• Motor and terminal cover• Metal back fixture• Protection Class IPX6Usage• Duty cycle: Max 10 % or max. 2 min. continuous use followed by 18 min. not in use.
• Ambient temperatures: +5° to +40°C• Compatibility: Compatible with LINAK control boxes. Please contact LINAK.
• See sales backup Chapter 3 - Compatibility.
• Approvals: IEC 60601-1, ANSI/AAMI ES60601-1 and CAN/CSA-22.2 No 60601-1

3

LA28C |4

Technical specifications

4.2

3.0

100-400-

1.5

285xxx-xxxxx0xx

2000

0/20002000

0/2000

2.5

5.3

4.0

100-400-

1.6281xxx-xxxxx0xx

2000

0/20002000

0/200037.04.8

100-400-

1.5

284xxx-xxxxx0xx

1500

0/15001500

0/1500

4

9.5

6.7

100-400-

1.6

284xxx-4xxxx0xx

1500

0/15001500

0/1500

4

9.5

6.7

100-400-

1.6

282xxx-xxxxx0xx

1000

0/1000

500

0/500

6

14.3

9.6

100-400-

1.5

282xxx-4xxxx0xx

1000

0/10001000

0/1000

6

12.7

9.6

100-400-

1.5

283xxx-xxxxx0xx

800

0/800

200

0/200

9

21.1

14.5

100-600-

1.5

283xxx-4xxxx0xx

800

0/800

800

0/800

9

20.9

10.7

100-600-

2.4

287xxx-xxxxx0xx

800

0/800

00/0

12

25.8

17.1

100-600-1.9287xxx-4xxxx0xx

8000/800

3000/300

1224.815.1

100-600

-

1.9

full

In steps of50mm

Typicalamp.

2

noStandard
stroke lengths(mm)

Pitch(mm/spindlerev.)

0/2000

Typicalspeed(mm/s)
Load*Self-lock max.
(N) Pull
Plastic/Alu

2500

Plastic/Alu

0/2000

Pull max. (N)2500

Push max. (N)286xxx-xxxxx0xx

Order number*Self-lock max.
(N) Push

LA28 Compact with standard motor

12V 24V

6.7

4.7

100-400-

3.9

285xxx-xxxxx1xx

3000

0/20003000

0/2000

2.5

8.6

6.1

100-400-

3.6

281xxx-xxxxx1xx

2000

0/20002000

0/2000

3

10.8

8.4

100-400-

2.9

284xxx-xxxxx1xx

2000

0/20001200

0/1200

4

14.6

10.3

100-400-

3.6

284xxx-4xxxx1xx

2000

0/20002000

0/2000

4

14.3

10.3

100-400-

3.4

282xxx-xxxxx1xx

2000

0/2000

500

0/500

6

22.0

13.8

100-400-

4.1

282xxx-4xxxx1xx

2000

0/20002000

0/2000

6

22.0

12.7

100-400-

4.6

283xxx-xxxxx1xx

1500

0/1500

500

0/500

9

34.2

16.5

100-600-

4.9

283xxx-4xxxx1xx

1500

0/15001500

0/1500

9

33.0

10.9

100-600-

5.5

287xxx-xxxxx1xx

800

0/800

00/0

1246.033.5

100-600-

3.1

287xxx-4xxxx1xx

800

0/800

8000/800

12

45.9

33.5

100-600-

3.1

full

In steps of50mm

Typicalamp.

2

noStandardstroke lengths
(mm)

Pitch
(mm/spindlerev.)

0/2000

Typicalspeed(mm/s)
Load*Self-lock max.
(N) Pull
Plastic/Alu

3500

Plastic/Alu

0/2000

Pull max. (N)3500

Push max. (N)286xxx-xxxxx1xx

Order number*Self-lock max.
(N) Push

LA28 Compact with “S” motor

12V 24V

LA28C |5Pitch(mm/spindlerev.)

Standard stroke
lengths (mm)0/200030000/20002.5

8.6

3.6

100-400

6.6-

281xxx-xxxxx2xx

2000

0/20002000

0/2000

3

10.2

6.2

100-400

6.9-

282xxx-xxxxx2xx

2000

0/2000

500

0/500

6

19.9

8.2

100-400

7.7-

282xxx-4xxxx2xx

2000

0/20002000

0/2000

6

19.8

7.0

100-400

8.5-

283xxx-xxxxx2xx

1500

0/1500

00/0

9

28.9

11.7

100-600

7.9-

283xxx-4xxxx2xx

1500

0/15001500

0/1500

9

26.5

2.8

100-600

7.9-

287xxx-xxxxx2xx

800

0/800

00/0

12

25.8

17.1

100-600

5.9-

287xxx-4xxxx2xx

800

0/800

800

0/800

12

25.8

17.1100-600

5.9-nofull

Above data
The measurements are made with the actuators connected to a stable power supply.

Typicalamp.

*Self-lock max.
(N) Pull
Plastic/Alu

3000

Typicalspeed(mm/s)
Load*Self-lock max.
(N) Push

285xxx-xxxxx2xx

Plastic/Alu

Pull max. (N)

12V 24V

Order number

Push max. (N)In steps of 50mm

LA28 Compact with 12V motor

LA28C |Ordering example
28110A-

10250

030Cables:

Jack cables
0 = Straight 2.3 m
1 = Straight 1.05 m
2 = Coiled 0.4 m
3 = Coiled 0.2 m

4 = Cable without plug 1.5 m
5 = Cable without plug 1.0 m
6 = 7cm leads with spade connectors only available
without reed.
X = Other cable/Length

IP-Degree:

2 = IPX6
3 = IPXX (without cover)
4 = IP20 (with cover)Motor type:

0 = 24V
1 = 24V S-motor
2 = 12V S-motor

Stroke length:

XXX = mmInst. Dim.:

0 = Standard (S + 156 mm)
X = Other inst. dimension

Option:1 = Safety nut RECOMMENDED
4 = Brake
0 = None
5 = Brake with safety nut
2 = Steel Splines
3 = Steel Splines with safety nut

Colour:- = black

Option:(Motor position)

A = 0O
B = 30O
C = 60O
D = 90OE = 120O
F = 150O

Pos.:

0 = NoneR = reed switch

Back fixture:

1 = Standard (Plastic) “01” (see dimension drawing re. orientation)
2 = Turned 90 degrees (Plastic) “02” (see dim. drawing re. orientation)
3 = Metal “01” (Aluminium) article number:028707* (without slot)
4 = Metal “02” (Aluminium) article number: 028708* (without slot)

Spindle type:

1 = 3 mm
2 = 6 mm
3 = 9 mm
4 = 4 mm
5 = 2,5 mm
6 = 2 mm
7 = 12 mm

Actuator type:

28 = LA28C

Max. with 2, 2.5, 3, 4 and 6 mm pitch: 400 mm
Max. with 9 and 12 mm pitch: 600 mm

G = 180O
H = 210OI = 240O
J = 270O
K = 300O
L = 330O(1 threaded)(2 threaded)(3 threaded)(2 threaded)(1 threaded)(1 threaded)(4 threaded)6

LA28C |7Dimensions
LA28 Compact without cover

Drawing no.: 028638

Back fixture 01

Back fixture 01		Back fixture 02

Back fixture 02 					Drawing no.:028744

oo120

90

150

60oo180o

Version C= 60%210o360 o

Version A= 0%
240o

330o
270o

300o

Drawing no.: 028647

LA28C |8ø256

Drawing no.: 028638

LA28C |9LA28 Compact with cover

Drawing no.: 028639

LA28 Compact with IPX6 housing

Drawing no.: 028730

LA28C | 10

Installation dimensions
S + 156: LA28 Compact (with or without safety nut), minimum inst. dim. 256mm.
S + 167: LA28 Compact with splines, minimum inst. dim. 267mm.
S + 181: LA28 Compact with safety nut and splines, minimum inst. dim. 281mm.
S + 188: LA28 Compact with brake, minimum inst. dim. 288mm.

Information
The above data is with a stroke length of 100mm.
In certain circumstances a stroke length of less than 100mm is possible - please contact LINAK A/S.
Compatible control boxes
CB8LA28 with standard motor

X

LA28 with strong motor

X

CB12

CB14

CBJ
X

X

X

X

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