The Stihl MS291 chainsaw is capable of handling guide bars up to 20 inches in length. While a 16-inch bar is often recommended for optimal balance and performance in general cutting tasks, the chainsaw is designed to effectively operate with longer bars, specifically 18 and 20 inches.
Understanding Bar Length Capabilities
When considering the appropriate guide bar for a chainsaw, it's important to differentiate between the recommended length and the maximum length a saw can effectively power.
- Recommended Bar Length: For the Stihl MS291, a 16-inch guide bar is frequently recommended. This length typically provides a good balance between cutting power, maneuverability, and fuel efficiency for a wide range of tasks, from felling smaller trees to bucking firewood.
- Maximum Bar Length: The MS291 can accommodate and operate with guide bars up to 20 inches. This extended length is beneficial for cutting larger diameter logs or felling bigger trees where the cutting capacity of a shorter bar would be insufficient.
Using a longer bar, such as a 20-inch, on an MS291 allows users to tackle more substantial timber. However, it's worth noting that a longer bar will require more power from the engine to drive the chain efficiently, potentially leading to slightly slower cutting speeds in dense wood compared to a shorter, lighter bar.
Key Specifications of the Stihl MS291
To help understand the chainsaw's capabilities, here are some essential specifications:
| Feature | Specification |
|---|---|
| Power Source | Gas |
| Powerhead Weight | 12.3 lbs. |
| Guide Bar Lengths | 16 in., 18 in., 20 in. |
| Chain Type | .325 RM3 OILOMATIC® |
| Engine Displacement | 55.5 cc |
| Chain Oil Capacity | 8.12 oz. |
Practical Considerations for Bar Length
Choosing the right bar length for your Stihl MS291 depends largely on the type of work you intend to do:
- 16-inch bar: Ideal for general property maintenance, cutting firewood, limbing, and felling small to medium-sized trees (up to 32 inches in diameter, cutting from both sides). This length offers excellent control and maneuverability.
- 18-inch bar: A versatile option that provides more reach and cutting capacity than a 16-inch bar, suitable for larger firewood or felling medium-sized trees.
- 20-inch bar: Best suited for felling larger trees, bucking substantial logs, or cutting through wider material. While the MS291 can handle this length, ensure the saw is sharp and well-maintained for optimal performance.
Regardless of the bar length, always ensure your chain is sharp and properly tensioned for safe and efficient operation. Always follow safety guidelines and wear appropriate personal protective equipment when operating a chainsaw.
