STIHL MS 400.1 C-M 20″ Chainsaw

Why buy the STIHL MS 400.1 C-M 20″ Chainsaw? Boasts the best power-to-weight ratio in the 60cc petrol chainsaw class. Specifically designed for forestry professionals for felling, delimbing, and processing wood. STIHL M-Tronic technology ensures optimum engine performance and effortless starting. Features a new compact design for exceptional handling and manoeuvrability. Advanced long-life HD2 air filter system for reduced maintenance and downtime. STIHL anti-vibration system significantly reduces fatigue for more comfortable work. A New Benchmark for Professional Forestry Chainsaws The STIHL MS 400.1 C-M is a complete redevelopment of its predecessor, engineered to set a new standard for high-performance petrol chainsaws in the 60cc class. Designed exclusively for forestry professionals, it is the ultimate tool for demanding tasks such as felling, delimbing, and preparing wood. It delivers an unparalleled power-to-weight ratio, ensuring maximum productivity with minimum fatigue. Unrivalled Power and Performance At the core of the MS 400.1 C-M is a potent 62.6 cm³ STIHL 2-MIX engine producing 3.9 kW (5.3 HP). Despite its impressive power, the powerhead weighs just 5.5 kg, 300g lighter than the previous model. The saw generates an impressive 4.3 Nm of torque, an increase on the MS 400, making it less pressure-sensitive and less likely to bog down when cutting through large timber. This power is managed by STIHL’s intelligent M-Tronic system, which electronically regulates ignition timing and fuel metering for optimal performance in all conditions, super-fast acceleration, and reliable starting. Engineered for the Professional User Every aspect of the MS 400.1 C-M has been refined for professional use. A larger magnesium flywheel and improved muffler enhance cooling during prolonged operation. The rear handle’s geometry has been improved for more comfortable handling, while a widened profile allows it to rest securely on the operator’s leg for easier plunge cutting. The saw’s underside features a rib pattern that helps it glide along tree trunks when snedding, preventing bark from getting caught. Downtime is minimised thanks to the advanced long-life air filter system with pre-separation and an efficient HD2 filter, which captures even fine dust and extends service intervals. Packed with Advanced STIHL Technology The MS 400.1 C-M is equipped with a host of features to make work safer, easier, and more efficient. Side-mounted chain tensioning provides quick and secure adjustment, while captive nuts on the sprocket cover prevent loss during maintenance. The controlled-delivery oil pump and STIHL Ematic system can reduce bar oil consumption by up to 50%. User convenience is further enhanced by tool-free fuel and oil caps, a decompression valve for easier starting, and a combi-lever with a stop function that ensures the machine is always ready to restart. For reliable year-round use, the carburettor preheating can be switched to a winter setting to prevent icing. As an established, authorised STIHL dealer in the UK with over 100 years of history, Sims Garden Machinery provides more than just a box. Our trained sales staff are available to offer expert advice at our Stratford-upon-Avon showroom. For local customers, every STIHL chainsaw we sell includes a comprehensive Pre-Delivery Inspection (PDI) by our trained mechanics, ensuring it is built, fuelled, and tested before it leaves us. We also provide a free local delivery service and a full handover demonstration, so you can be confident in operating your new machine safely and effectively from day one. This level of service and support is central to why customers choose a trusted local dealer for their professional equipment. Not sure which machine or part is right for you? Our team is here to help. Contact us today for expert advice. Technical Specification Specification Value Displacement 62.6 cm³ Power 3.90 kW Engine power 5.30 HP Power-to-weight ratio 1.41 kg/kW Device weight 5.5 kg ¹ System weight 6.50 – 6.77 kg ² Bar length 50 cm / 20 in ³ Saw chain pitch 3/8″ Groove width 1.60 mm Sound pressure level 107 dB(A) ⁴ Sound power level 116 dB(A) ⁴ Vibration level left 4.5 m/s² ⁵ Vibration level right 4.4 m/s² ⁵ CO2 690 g/kWh ¹ Without guide bar and saw chain² With guide bar and saw chain³ The actual cutting length is shorter than the specified bar length⁴ K-value according to Directive 2006/42/EC = 2.0 dB(A)⁵ K-value according to RL 2006/42/EG = 2 m/s² Why buy from Sims Garden Machinery? Authorised main dealer We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on. Real people, real support No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help. Expert advice — not pushy sales Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine. Established, independent family business We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth. Frequently Asked Questions Who is the STIHL MS 400.1 C-M chainsaw designed for? The STIHL MS 400.1 C-M is specifically engineered for forestry professionals. Its class-leading power-to-weight ratio and high torque make it the ideal tool for demanding, daily tasks such as felling, delimbing, and preparing large timber. What are the main advantages of the MS 400.1 C-M over the previous MS 400 model? The MS 400.1 C-M is a complete redevelopment. Key improvements include being 300g lighter, having increased torque (4.3 Nm) for superior cutting performance in large timber, an improved HD2 air filter for longer service life, and enhanced ergonomics for better handling and comfort. What is STIHL M-Tronic technology? STIHL M-Tronic is a fully electronic engine management system. It automatically adjusts ignition timing and fuel metering in response to environmental conditions like temperature, altitude, and fuel quality. This ensures the chainsaw always delivers optimal performance, easy starting, and rapid acceleration without needing manual carburettor adjustments. Does this chainsaw require any special setup? As an authorised STIHL dealer, Sims Garden Machinery ensures your chainsaw is ready to use. For local customers, this includes a full Pre-Delivery Inspection (PDI) by our trained mechanics, fuelling with STIHL MotoMix, and a complete handover demonstration to ensure you can operate it safely and effectively. User Manuals / Downloads View STIHL Brochure