Products Description
FS120/FS200/FS250 Aluminium Flexible Shaft Tube 24.5×1500mm | Outer Transmission Housing for Straight-Shaft Brush Cutters & Grass Trimmers
Lightweight Precision-Extruded Aluminium Alloy Shaft Tube with Pre-Drilled Coupling Holes
FS120/FS200/FS250 Aluminium pipe Flexible shaft 24.5mmX1500mm
This 24.5 mm diameter × 1500 mm aluminium tube is the outer transmission housing for FS120, FS200, and FS250 series straight-shaft brush cutters - the structural backbone that connects the engine/clutch assembly at the top to the gearhead and cutting attachment at the bottom. Inside this tube, the inner flexible drive shaft spins at engine RPM, supported by spaced nylon or bronze bushings pressed into the tube bore. The outer tube provides the rigid structural connection that transfers the operator's push, pull, and lift forces to the cutting head while protecting the spinning inner shaft from dirt, debris, and impact.Aluminium is the standard material for brush cutter outer tubes because it combines the rigidity needed for precise cutting-head control with the light weight essential for a tool carried and maneuvered for hours at a time. A steel tube of the same dimensions would weigh 2.5–3× more, adding significant operator fatigue over a full day of brush clearing.
Technical Profiles & Materials
24.5 mm OD × 1500 mm Length - The Standard Straight-Shaft Format：
The 24.5 mm outer diameter is the industry-standard tube size for mid-range straight-shaft brush cutters in the 33–52 cc engine class, including the FS120, FS200, and FS250 platforms. The 1500 mm length provides the reach needed for an operator to cut brush and grass at ground level while standing upright, without the cutting blade being dangerously close to the operator's feet. This standardized dimension means the tube is interchangeable across three model series - simplifying parts inventory for dealers and fleet operators.
Direct Replacement for FS120 & Compatible Models：
The FS120 is a widely cloned brush cutter platform. This shaft is dimensionally matched to the FS120 outer tube length, ferrule engagement profile, and overall shaft diameter. For repair shops and equipment dealers servicing multiple brush cutter brands that share the FS120-type straight-shaft architecture, one drive shaft SKU services multiple machine models - restoring full power transmission without sourcing an entire shaft-and-tube assembly.
Technical Specifications
| ITEM | DETAILS |
| Type | Aluminium Outer Transmission Tube - Straight-Shaft Brush Cutter Housing |
| Application | FS120, FS200, FS250 & compatible straight-shaft brush cutters, grass trimmers & clearing saws (33–52 cc engine class) |
| Code | 0204116 |
| Material | 6000-series precision-extruded aluminium alloy (6061/6063 equivalent) |
| Details explanation | OD 24.5 mm × Length 1500 mm. Pre-drilled coupling holes at both ends. Consistent bore diameter for smooth inner shaft rotation. Compatible with FS120/FS200/FS250 models. |
| Brand Name | SeaSummer |
| Operating Temp | −30 ~ +80 °C (ambient / tube surface) |
| Delivery Time | 30 Days |
| Packaging | Cardboard packaging |
Products Application
FS120/FS200/FS250 Brush Cutter Transmission Housing
The outer tube is the primary structural component of the straight-shaft transmission assembly. It houses the inner flexible drive shaft and its support bushings, connects the engine/clutch housing to the gearhead, and provides the rigid beam that transfers the operator's cutting force to the blade or trimmer head. A bent outer tube - the most common structural failure on a brush cutter - causes the inner shaft to rub against the tube wall, generating friction that robs engine power, overheats the shaft, and destroys the support bushings.
Brush Cutter Rebuild & Component Replacement
When rebuilding a brush cutter after a major impact - dropping the machine from a truck bed, striking a hidden boulder with the shaft - the outer tube is often the first component to be replaced. A bent tube forces the inner shaft out of alignment, which in turn wears the clutch bearing and gearhead input seal. Replacing only the inner shaft without straightening or replacing a bent outer tube dooms the new shaft to the same accelerated wear. This tube provides the straight foundation required for a complete transmission rebuild.
Custom & Multi-Model Parts Stocking
For brush cutter dealers, repair shops, and agricultural equipment distributors, the 24.5 mm × 1500 mm tube is the most commonly needed replacement tube dimension in the 33–52 cc engine class. Stocking this single SKU covers the FS120, FS200, and FS250 models - the three highest-volume brush cutter platforms in this displacement range. The pre-drilled holes and consistent extrusion quality mean the tube can be installed with standard shop tools in under 30 minutes, making it a practical in-field or in-shop repair rather than a send-away service.
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
Trusted Partnership Power
YOUR PROFESSIONAL ONE-STOP SOURCE
FOR 10000+ OUALITY PARTS
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BACKED BY 200+ TRUSTED FACTORY PARTNERS
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FAQ
Q: Are you an impartial industrial components dealer or a direct China water pump factors factory?
A:We are a direct, ISO9001-certified engineering water pump components manufacturing facility and precision fluid-control factor manufacture exporter primarily based in China. We function our personal cleanroom injection molding bays, computerized ultrasonic welding arrays, computerized hydraulic stress check stations, and clean-room packaging lines, passing direct-factory wholesale price financial savings straight to your element procurement margins.
Q: Can your manufacturing unit furnish full certification forms for food-contact or consuming water compliance?
A: Yes, absolutely. For food, beverage, or scientific applications, our manufacturing unit makes use of one hundred percent virgin, un-recycled polypropylene resins accompanied by means of fabric traceability certificates. We mechanically furnish B2B purchasers with complete FDA compliance documentation, NSF-grade compound declarations, and RoHS/REACH chemical protection screening sheets to make certain clean clearance thru worldwide customs.
Q: Do you provide customization picks for distinctly corrosive fluids like sturdy acids or ozone?
A: Yes, we are a thoroughly succesful OEM/ODM supplier. For aggressive chemical or ozone environments, we can improve the 12x26.5mm valve configuration in our factory: substituting the general PP housing with top class PVDF (Fluoropolymer) and changing any steel springs with Hastelloy or whole springless gravity-ball architecture, making sure final chemical resistance.
Q: How do we impervious a pattern batch to execute computerized lifecycle and burst-pressure testing?
A: We relatively inspire complete laboratory contrast earlier than logging mass grant agreements. We can ship a pattern lot of 5-10 gadgets of our inventory 12x26.5mm take a look at valves for assessment (setup costs and DHL/FedEx air freight apply). Once the factors pass by your inner lifecycle verification and a formal wholesale quantity manufacturing contract or container run is locked in, the sampling charges are a hundred percent credited returned to your industrial balance.
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