LINACT-SMT52
Heavy Duty Marine Linear Actuator
The LINACT-SMT52 Heavy-Duty Marine-Grade Linear Actuator is the powerhouse of our tubular range, featuring a robust 52mm diameter and a maximum load capacity of up to 6000N. Its clean, “in-line” design is specifically intended for visible outdoor applications where both aesthetics and extreme force are required.
⚠️ Manufacture to Order: To ensure the highest level of salt-water protection and performance, the LINACT-SMT52 is a specialized unit manufactured to order. This ensures each unit meets your exact stroke and mounting requirements.
Ideally suited for heavy yacht automation, agricultural machinery, and smoke vent systems, the SMT52 offers IP67M protection and 316 stainless steel components. Its high-load capability ensures it can manage the toughest sea-facing tasks while maintaining a clean, professional profile.
Detailed Specifications of the LINACT-SMT52 Heavy-Duty Marine Actuator
The LINACT-SMT52 is the powerhouse of our marine range, offering exceptional build quality and high-force performance metrics. Designed for heavy-duty outdoor and sea-facing applications, it features a robust 52mm diameter housing with optional 316 stainless steel construction for maximum corrosion resistance. Safety is paramount, with optional limit switch wiring available to protect your equipment during full extension or retraction.
Available with standard and custom stroke lengths up to 500mm, the LINACT-SMT52 is a specialized, manufacture-to-order solution for large-scale automation. If your project involves lifting heavy deck platforms or engine covers, integrated Hall sensor feedback is available for perfectly synchronized multi-unit operation. With a static self-locking force of up to 8000N, it holds massive loads securely without power, ensuring reliable stability in any conditions.
General Technical Specifications
When selecting the right unit, it is important to consider the technical capabilities of the LINACT-SMT52 Heavy-Duty Marine-Grade Linear Actuator. Below, we have outlined the critical performance data:
- Max Dynamic Load: A powerhouse engineered to handle up to 6000N (600kg) of dynamic force on 24Vdc.
- Speed: Speed ranges from 3mm/s at full load up to 88mm/s at no load, depending on the gear configuration.
- Stroke Lengths: Custom lengths between 20mm and 500mm available on request
- Duty Cycle: Rated for 10% (S2). For every 2 minutes of continuous operation, it requires an 18-minute rest period.
- Operating Temperature: It functions reliably in extreme environments between -20°C and +60°C.
For projects requiring precise control or synchronization, optional dual Hall sensor feedback systems are available. Thus, you can easily integrate the LINACT-SMT52 into advanced Marine automation setups.
| Detail | |
|---|---|
| Motor Type | DC Permanent Magnet Motor |
| Protection | Limit switch wires (Optional) |
| Standard Voltage | 12VDC & 24VDC |
| Material (Outer Tube) | 6063 Aluminum / 304 Stainless Steel |
| Material (Piston Rod) | 316 Stainless Steel |
| Max Dynamic Load | 6000N (24V) / 5000N (12V) |
| Max Static (Self-Lock) Force | Up to 8000N |
| Feedback Options | Dual Hall Sensors |
| IP Rating | IP66 (Standard) / IP67M (Optional) |
| Noise | 75dB |
| Certification | CE Certified |
LINACT-SMT52 Performance Variants
LINACT-SMT52 PERFORMANCE VARIANTS
To precisely match your heavy-duty application, the LINACT-SMT52 Heavy-Duty Marine-Grade Linear Actuator is available in 7 different gear configurations. Please Note: The 6000N variant is available for 24Vdc models only; 12Vdc models are rated for a maximum load of 5000N.
| Max Dynamic Load (N) | Self-Locking Force (N) | Speed (mm/s) | Max Current (A) | ||
|---|---|---|---|---|---|
| No Load | Full Load | 12Vdc | 24Vdc | ||
| 6000* | 8000 | 4.8 | 3.0 | N/A | 5.0 |
| 5000 | 7500 | 4.8 | 3.3 | 10.0 | 5.0 |
| 4500 | 8000 | 6.4 | 4.5 | 10.0 | 5.0 |
| 3000 | 6000 | 9.6 | 6.0 | 10.0 | 5.0 |
| 1800 | 3600 | 16 | 10 | 10.0 | 5.0 |
| 1200 | 2400 | 24 | 15 | 10.0 | 5.0 |
| 300 | 600 | 88 | 55 | 10.0 | 5.0 |
*6000N variant available in 24Vdc model only.
Dimensional Specifications
Dimensional Specifications
The LINACT-SMT52 is a heavy-duty unit. Use the formulas below to calculate the required mounting space based on your chosen technical configuration:
📏 Installation Formulas (Heavy-Duty Series)
| Standard (with Limit Switches) | Retracted (L) = Stroke + 305mm |
| With Hall Sensor Feedback | Retracted (L) = Stroke + 325mm |
| With Over-Current Protection | Retracted (L) = Stroke + 325mm |
Total Extended Length = Retracted Length (L) + Stroke
Key Features & Benefits
Key Features & Benefits
- Maximum Dynamic Force: A heavy-duty powerhouse capable of managing dynamic loads up to 6000N (24Vdc), ideal for large deck platforms.
- Rugged Marine Engineering: Specifically designed for outdoor sea-facing applications, featuring 316 stainless steel piston rods and optional full stainless steel housings.
- Visible Luxury Automation: The 52mm tubular design is intended for high-end yacht and architectural applications where the actuator is a visible part of the design.
- Intelligent Synchronization: Fully compatible with Hall sensor feedback systems to ensure heavy, multi-actuator platforms lift with perfect alignment.
- Extreme Sealing (IP67M): Engineered to remain dry and functional in heavy seas and extreme weather with specialized IP67M protection.
- Static Load Security: Features a high self-locking force of up to 8000N, ensuring heavy loads stay securely in place even when power is disconnected.
Typical Applications
Typical Applications
The LINACT-SMT52 Heavy-Duty Marine-Grade Linear Actuator is built for maximum force and endurance. It is the powerhouse solution for visible high-load applications, including:
- Heavy Yacht Automation: Specifically designed for engine room covers, heavy deck hatches, and swim platform extensions that face direct sea exposure.
- Industrial Ventilation: Large-scale smoke vent systems and heavy skylights in architectural projects requiring high-load capacity and aesthetic integration.
- Agricultural Machinery: Automation for heavy-duty farming equipment where actuators are visible and must withstand mud, water, and debris.
- External Marine Fixtures: Deployment of heavy anchors, radar masts, and outdoor high-force sea-facing gates.
Mounting Brackets
Download Data Sheet
Get all the essential details here. Specifically, find full specifications, precise sizes, and comprehensive performance charts for the LINACT-SMT52 series. Therefore, you can confidently download the official LINACT-SMT52 data sheet below:
Intellectual Property Notice: All technical specifications and documents remain the exclusive property of Linear Actuators South Africa (Pty) Ltd. These files may not be reproduced or shared without written consent, in accordance with Clause 16 of our Standard Terms & Conditions.
Video Demonstration
Video Demonstration: LINACT-SMT52 Heavy-Duty Power
Take a closer look at the LINACT-SMT52 heavy-duty marine actuator. Designed for high-load aquatic environments, this demonstration highlights its 4500N force capability and robust 316 stainless steel construction in action.




