Ryobi 18V ONE+ Compact Cordless Chainsaw RY18CS20A-125 - 20 cm Bar
The Ryobi RY18CS20A-125 18V ONE+ compact cordless chainsaw (part number 5133005415, EAN 4892210203946) is an agile cutting tool designed for tree pruning, limbing, and fast sectioning of small logs and firewood. Fitted with a 20 cm (8") guide bar and a full-complement chain with a 3/8" (9.53 mm) pitch running at 4.6 m/s, it delivers smooth, splinter-free cuts with low vibration and reduced kickback hazard. This complete kit includes one 18V 2.5 Ah Lithium+ battery pack (RB1825C) and the RC18115 fast charger (75-minute recharge time). Weighing only 2.73 kg with battery installed, it combines keyed chain tensioning with on-board wrench storage in the auxiliary handle and direct manual lubrication, ensuring effortless operation without messy oil tank leaks.
Key Features and Construction Advantages
- 20 cm Guide Bar & Full-Complement Chain: Higher cutter tooth count delivers consistently smooth slicing, reduces binding, and lowers kickback hazards.
- Ryobi ONE+ 18V System Compatibility: Powered by an interchangeable 2.5 Ah lithium battery compatible with over 200 ONE+ garden and power tools.
- Ultra-Lightweight & Balanced Layout: Weighs only 2.3 kg bare tool and 2.73 kg with battery, reducing arm fatigue during overhead or extended pruning tasks.
- Robust Keyed Chain Tensioning: Sturdy adjustment mechanism with wrench stored directly inside the front auxiliary handle for quick accessibility.
- Simplified Direct Manual Lubrication: Direct oiling onto the bar and chain eliminates internal oil tanks and stops messy drips in vehicle trunks or sheds.
- Eco-Friendly Packaging: Shipped in sustainable packaging manufactured with over 75% recycled cardboard.
Technical Specifications and Performance
| Commercial Model Name |
Ryobi RY18CS20A-125 - 18V Compact Cordless Chainsaw |
| Part Number / EAN Code |
Code 5133005415 / EAN 4892210203946 |
| Operating Voltage |
18V (Ryobi ONE+ platform) |
| Battery Included |
1x 18V 2.5 Ah Lithium-ion battery (RB1825C) |
| Charger Included / Charge Time |
Includes RC18115 charger (full charging time: 75 minutes) |
| Guide Bar Length |
20 cm (8 inches) |
| Chain Pitch |
3/8" (9.53 mm) - Full-complement profile |
| Chain Speed |
4.6 m/s |
| Tensioning System |
Keyed adjustment with on-board tool storage |
| Lubrication Method |
Direct manual lubrication |
| Weight Without / With Battery |
2.30 kg / 2.73 kg (EPTA standard) |
Operating Applications and Field Suitability
| Application Field |
Capabilities & Operating Benefits |
| Garden & Orchard Pruning |
Ideal for cutting back dead branches, crown thinning, and shaping trees with superior maneuverability in dense canopy growth. |
| Log Bucking & Firewood Sectioning |
Fast cross-cutting of smaller logs and fallen limbs up to 15-18 cm in diameter without the maintenance and noise of petrol engines. |
| Light DIY Timber Work & Fencing |
Handy for sizing fence posts, wooden landscaping stakes, and home structural timber work with zero fumes and low operational noise. |
Operating Guidelines, Equipment & Safety Notes: Standard package includes the RY18CS20A chainsaw body, one 18V 2.5 Ah Lithium-ion battery pack, RC18115 charger, blade scabbard protector, bar and chain lubricating oil, and the adjustment tool stored inside the handle. Prior to cutting, apply a few drops of lubricating oil directly across the guide bar groove and chain links. Check chain tension to allow approximately 1-2 mm of free play when gently lifted from the center of the bar. Always wear safety glasses and cut-resistant work gloves. Remove the battery pack prior to maintenance, tensioning, or storage.
