RS PRO Linear Actuators
Model: MD7
RS Stock No.: 177-4506
Features
- Compact Design
- Preset Limit Switches
- Input Voltage 24VDC
- Stroke 150mm
- IP54 Rating
- Duty Cycle 10%
Product Description
The RS PRO MD7 is a quiet and powerful linear actuator capable of up to 6000N thrust, designed for medical and homecare applications. Its main applications include medical equipment and furniture.
RS PRO is the own brand of RS. The RS PRO Seal of Approval signifies professional quality, with every part rigorously tested, inspected, and audited against demanding standards, making RS PRO the Smart Choice for customers.
General Specifications
| Actuator Type | ACME Screw |
|---|---|
| Motor Technology | DC Motor |
| Control | S - Limit Switch |
| Series | MD7 |
| Colour | Grey |
| Duty Cycle | 10% or 2 min of continuous operation in 20 min. |
| Housing | Plastic moulding, aluminium cover tube |
Electrical Specifications
| Input Voltage | 24VDC |
|---|---|
| Current No Load | 0.6A at 24VDC |
| Current Full Load | 2.9A at 24VDC |
| Motor Power | 70W |
| Maximum Acceleration | N/A |
| Maximum Load | 3000N Push/Pull |
| Maximum Speed No Load | 11.0mm/s |
| Maximum Speed Full Load | 8.2mm/s |
| No Load Torque | N/A |
| Maximum Force Lifting | 3000N |
| Noise Level | ≤50dB |
| Motor | Permanent magnet motor 24V DC/ 3300rpm |
| Connection | Detachable Grey PVC V type 4 pin DIN to V type 4 pin DIN Cable |
| Positioning Feedback | N/A |
Mechanical Specifications
| Maximum Stroke Length | 150mm |
|---|---|
| Brake | N/A |
| Spindle Type | 8mm pitch |
| Gear Ratio | N/A |
| Front Connector | Drilled Hole, 10mm |
| Rear Connector | Drilled Hole, 10mm |
| Clevis Ends | Yes |
| Screw | ACME screw |
| Overall Length Closed | 370mm |
| Weight | 2.02Kg or 2020g |
| Ambient Operation Temperature | -20°C to 65°C |
| Storage Temperature | -20°C to 65°C |
| IP Rating | IP54 |
Approvals
| Compliance/Certifications | CE / EN55014-1:2017+A11:2020 |
|---|---|
| Declarations | EN 55014-2:2015 |
Accessories
| Accessory | RS PRO Product Number |
|---|---|
| Controller | 1774526 |
| Handset | 2180871 |
Images of accessories show a grey controller unit with multiple ports and cables, and a black handset with a coiled cable and buttons.
Performance Graphs
Speed vs. Load (24V DC)
A line graph titled 'Speed vs. Load (24V DC)'. The x-axis represents Load in Newtons (N) from 0 to 6000. The y-axis represents Speed in millimeters per second (mm/s) from 0 to 12. The plotted line shows that at 0N load, the speed is approximately 11mm/s, and as the load increases, the speed decreases, reaching approximately 3mm/s at 6000N load. The line is marked 'F8'.
Current vs. Load (24V DC)
A line graph titled 'Current vs. Load (24V DC)'. The x-axis represents Load in Newtons (N) from 0 to 6000. The y-axis represents Current in Amperes (A) from 0 to 4. The plotted line shows that at 0N load, the current is approximately 0.6A, and as the load increases, the current increases, reaching approximately 2.9A at 3000N load. The line is marked 'F8'.
Dimensional Diagram
A detailed dimensional diagram of the linear actuator. Key features include:
- Overall length of the actuator body: 166mm.
- Width of the motor housing end: 84.5mm.
- Mounting points at front and rear, both with 10mm diameter holes.
- A detachable cable plug is shown.
- The main body length is approximately 116.5mm.
- The stroke length is 150mm, allowing for two extended lengths: A (338mm) and B (488mm).
- Push/Pull Load indicator is present.
- Various dimensions are annotated, such as 49.5mm, 14.5mm, 19.5mm, 114mm, 25.5mm, 15mm, 168.5mm, 28.5mm, 57.6mm, 51.2mm, 35.8mm, and a radius R56.
Connector Details
Front and Rear Connectors
Diagrams show the front and rear connectors. Both are circular fittings with a central hole of 10mm diameter. The front connector has a length of 80mm and mounting hole dimensions of 18mm and 15mm. The rear connector has a length of 30mm.
4-Pin DIN Plug Pin Out
A diagram illustrates the pinout for a 4-pin DIN plug. The pins are labeled M- (negative) and M+ (positive), indicating power connections.
V-type Connector
An angled V-type connector is depicted.
