Slotted Link Apparatus ProDynami 1236 demonstrates the concept and working principle of pure simple harmonic motion. As the crank rotates, this Slotted Link Apparatus drives the bar in an oscillating manner, replicating piston and crankshaft motion in an engine. It offers 3 crank radii (25mm, 37.5mm, 50mm) and 3 output strokes (50mm, 75mm, 100mm), with an integrated angle measuring scale and ruler. The disc is mounted on a bearing with a holder joined to the bar for accurate displacement measurement.

Slotted Link Apparatus ProDynami 1236 — Technical Specifications
| Parameter | Value |
|---|---|
| Experiment Type | Demonstration and laboratory experiment on harmonic reciprocating motion |
| Crank Disc | Aluminium, anodised |
| Crank Radii Available | 3 different radii |
| Slider Crank | Anodised, 3 different output strokes |
| Measuring Features | Integrated angle measuring scale and ruler |
| Crank Radius | 25mm, 37.5mm, 50mm |
| Output Stroke | 50mm, 75mm, 100mm |
Technical Data
Crank
| Parameter | Value |
|---|---|
| Radius Options | 25mm, 37.5mm, 50mm |
Slider
| Parameter | Value |
|---|---|
| Output Stroke Options | 50mm, 75mm, 100mm |
Key Features
Experiments
Construction and Design
The Slotted Link Apparatus ProDynami 1236 consists of a disc mounted on a bearing with a holder on its surface, joined with a bar through the holder. The disc has a rotational scale so its angle can be checked at any position. A scale is placed with the solid bar. Bar displacement can be determined at any disc angle. The crank disc is made of anodised aluminium and offers 3 different crank radii: 25mm, 37.5mm, and 50mm. The slider crank is anodised and offers 3 different output strokes: 50mm, 75mm, and 100mm. An integrated angle measuring scale and ruler are included. This Slotted Link Apparatus demonstrates how smooth rotary motion converts into purely harmonic reciprocating motion, replicating the mechanism seen in piston and crankshaft motion in an engine.
Scope of Delivery
Q: What is the Slotted Link Apparatus ProDynami 1236 used for?
A: It demonstrates the concept and working principle of pure simple harmonic motion, converting smooth rotary motion into purely harmonic reciprocating motion, similar to piston and crankshaft motion in an engine.
Q: What crank radii are available?
A: 25mm, 37.5mm and 50mm.
Q: What output strokes are available?
A: 50mm, 75mm and 100mm.
Q: How is bar displacement measured?
A: A scale placed with the solid bar allows bar displacement to be determined at any disc angle, using the integrated angle measuring scale and ruler.
Q: What does the scope of delivery include?
A: 1 experimental unit and 1 instruction manual.