GLA1500-N High Force Low-Noise 12V DC Linear Actuator

Custom options are also available, please contact us for more information

The GLA1500-N is a compact-bodied and yet high force actuator with a very high build quality. It is capable of providing a pushing or pulling force up to a maximum of 1500N (152kg, 337lbs) with a travel speed of 10mm/s under no-load, reducing to 6mm/s under the full rated load. A built-in quadrature encoder allows the actuator travel speed (and position) to be accurately measured, which means that two (or more) of the actuators can be synchronised when paired with a suitable controller. 

The model has an attractive mix of corrosion resistant materials used throughout the exterior, including a stainless steel extending rod. Uniquely for an actuator of its size and layout (with motor parallel to the output) the transmission uses two worm-and-wheel reduction stages, making it one of the quietest compact-body actuators available at its force level.

Typical applications include electrically operated doors, hatches, special effects and adjustable furniture.

Please see below for more product details.

£97.70 £117.24 inc VAT
In Stock
Group SKU: GLA1500-N

The GLA1500-N fits neatly between our smaller GLA750 and larger GLA4000-S models, perfect for applications where the load is higher but where space is of a premium.  

With an especially low noise output (even lower than the smaller-sized GLA200 and GLA750 models) these actuators are ideal for automation around the home, including electrically operated windows, cellar hatches and adjustable furniture. Operation at 12V DC means that the actuator can be driven from most vehicle batteries or by readily available power adapters. We also stock 8mm-pin steel mounting brackets suitable for this actuator.

The actuator body is rated to IP66, it may be used outdoors but should be shielded from direct long-term rain exposure (washing/cleaning and the occasional splash are OK). The surface quality of the actuator is excellent, ideal if you want to maintain a quality look when they are exposed. 

As with most of our stock actuators this model has built-in limit switches at the ends of travel, meaning the actuator should stop automatically at the fully retracted and the fully extended positions. 

Integrated Encoder (for position sensing and synchronising)

The actuator has a hall-sensor based quadrature encoder built-in to the motor. The encoder is powered by two of the six cores of the main cable (+Vcc Red, -GND Black) and can run from a DC supply of between 5-24V. It has a dual-channel output (channel A Yellow lead, Channel B White lead), with each channel generating 26.1 pulses per millimetre of travel (4 pulses per motor revolution). One of the channels is out of phase with the other, as such it is possible to tell both the speed (from pulse frequency) and direction (by reading the pulses of one channel and comparing it to the other) of the motor. The nature of the signals that are generated is illustrated below. Given a maximum no-load travel rate of 10mm/s for the 12V motor (when at 12V) the pulse frequency may be up to 261Hz per encoder channel (or the frequency rate may be greater than this if your controller is counting all rising/falling edges as opposed to only HIGH/LOW signal state changes). When used with the appropriate controller the encoder signals can be used for positional control with much greater accuracy and consistency than potentiometer-based actuator feedback systems. 

Quadrature Encoder Signal Output Actuator Extending Retracting

Leads & Connector Options

The actuator comes with a 2m long PVC-insulated lead as standard, this has six internal cores: Blue and Brown (to the motor, thicker wires), Red and Black (positive and negative power to the hall sensor encoder circuit, thinner wires), and White and Yellow (outputs from the encoder, channel 1 and channel 2, also thinner wires). If you are only running a single actuator (don't require synchronised control) and don't need position/speed feedback then you can connect directly to the brown and blue motor leads and ignore the others. The connections are illustrated in the below diagram which also shows the limit switch circuit inside each actuator, in series with the brown and blue motor leads.

Options are provided above for us to add a Male 6-pin 'mini-fit jr' style connector (4.2mm pitch, 3x2 format, latched) onto the actuator lead, bringing the total lead length to either 1m or 2.5m. If you have a custom lead length or connector requirement, please contact us.

Actuator Motor and Encoder Circuit Connections Diagram
6-Core Actuator Lead

User Advice

To change the direction of travel simply swap the polarity of the DC power source to the two actuator leads (this may be achieved using hardware such as our rocker switch harness or GLA-CU-X3 remote control unit). By varying the input voltage between 0-12V DC it is possible to control the speed of the actuator. Reducing the voltage will also reduce load capacity (for example at 6V the actuator will have roughly half of the maximum load capacity at 12V).

This actuator is designed primarily for compression loads, it will typically work OK in tension up to the same rated maximum load, but is is more vulnerable to damage from overloading when under tension. Avoid shock or impact loads (exceeding the rating) through the mounting points which could damage the actuator. 

Due to the construction of the motor and gearbox of the GLA1500-N model this actuator is particularly vulnerable to damage if it is run at a voltage above the nominal 12V DC so please ensure that your power source does not exceed this. Running at a higher voltage than the nominal 12V DC will invalidate the warranty. A 12V lead acid battery is OK which may in practice be up to 13.8V when fully charged, but this should be an absolute limit. Mains adapters should be adjusted to 12V output maximum.

Be aware of the 'duty cycle' rating of the actuator, which determines the maximum proportion of the time that the actuator should be in operation for, to prevent overheating and ensure longevity. This is specified under 'Technical Details' below. 

Ensure that the control hardware and power source are capable of providing sufficient current for the loads you expect the actuator to experience. We cannot be held liable for damage caused to connected hardware due to inappropriate hardware selection.

A fast-action fuse, or digital overload protection such as the GR-SENS current limiting switch, should be used to protect the actuator against stalling due to an overload, which can permanently damage the motor. 

CAD models (STEP, IGS, Autodesk Fusion) of the actuator are available upon request.

GLA1500-N 100mm Example CAD Model

Operating Characteristics
Motor:Nominal 12V DC, up to 40W
No Load speed:10mm/s
No Load Current:1.2A
Full Load Speed:6mm/s
Maximum load:1500N (152kg, 337lbs). The maximum load should be reduced if the load is not straight, parallel to the movement of the actuator. Longer-travel actuators are affected to a greater extent by off-axis loads.
Current for max. load:5.7A (do not continue to apply power to the actuator if the load exceeds the maximum rating, this would void the warranty and be likely to damage the gearbox or bearings)
Noise levels:< 48dB under no-load
< 50dB under full-load
Maximum duty cycle:15% (this is the maximum proportion of time that the actuator may be in operation for, up to 2minutes during any continuous stretch. The duty cycle should be reduced below 10% for average loads >1000N)
Life expectancy:Nominal 40,000 strokes

Please be aware that there may some variation in the operating performance from actuator to actuator, as a rule-of-thumb allow for a 5% difference above/below the given values. If you intend to use the actuators in sets of two or more driving the same assembly then you must ensure that the driven assembly is rigid enough to transfer forces between them effectively or else the output could twist and put excessive stress on the framework and actuators. If your structure is not rigid or needs to stay level throughout its travel (e.g. tabletop surfaces rising/falling level to the ground) then please get in contact to discuss automatic synchronising control options.

GLA1500-N Force vs Speed Graph

Actuator Build Detail
(click on image to expand)
GLA1500-N Actuator Dimensioned Diagram

Installation length:This is the distance from the front to rear mounting hole centres when the actuator is retracted.

100mm stroke: 215mm200mm stroke: 315mm
300mm stroke: 445mm400mm stroke: 545mm 
500mm stroke: 675mm

Add the stroke length to the installation length to get the fully extended hole-to-hole centre distance (for example this would be 515mm for the 200mm stroke).
Mounting:Two 8mm holes. One is towards the end of the piston rod, the other is on the rear of the gearbox housing.
Body material:Aluminium, and nickel plated & painted steel. Enclosure rated to IP66 (the latest version includes an improved seal around the extending rod).
Certification:UKCA and RoHS compliant product
Operating temperature:-15°C ~ +55°C
Gearbox type:Two-stage low-noise nylon worm-and-wheel. First stage 29:2 ratio (2-start worm), second stage 9:4 ratio (4-start worm), cumulative 32.625:1 ratio.
GLA1500-N Gearbox Worm Gears
Limit switches:Two limit switches are installed at the ends of travel which automatically stop travel at the fully retracted and extended positions. The internal circuit is as pictured below (click on image to expand):
Limit Switch Circuit Diagram, Motor and Switches
Wire length:2m, excluding optional 6-pin molex connector which if selected brings the total length up to 2.5m
100mm:  1280g
200mm:  1480g
300mm:  1740g400mm:  1940g
500mm:  2170g

If you have any queries about this item, including for information on controller options and bulk pricing, then please contact us.

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