Fixed Knife (Part #MF90A0838C)
Precision Shearing for Flawless Thread Cuts
Ensure your automated trimming system operates with factory-level sharpness using this Fixed Knife. Working in direct contact with the moveable knife, the MF90A0838C provides the stationary cutting edge necessary to shear thread cleanly and instantly. This premium component is essential for maintaining the high-speed workflow of your industrial workstation.

Perfect Compatibility
This fixed knife is a precision-fit replacement designed for:

Mitsubishi LS2-190 industrial sewing machines (Automatic Trimmer Models)

Key Features & Benefits
High-Carbon Steel Construction: Forged from hardened industrial steel to maintain a razor-sharp edge significantly longer than standard replacements, even when cutting heavy-duty threads.

Precision-Ground Cutting Surface: Features a micro-honed edge that ensures a clean, burr-free cut, preventing thread fraying and improving the reliability of the next stitch cycle.

Vibration-Resistant Mounting: Milled to exact tolerances to ensure a rock-solid fit within the machine bed, preventing the "knife chatter" that leads to incomplete cuts.

Anti-Friction Finish: The smooth surface reduces heat buildup during high-speed trimming cycles, protecting both the thread and the surrounding mechanical components.

Product Specifications
Feature Details
Part Number MF90A0838C
Component Type Stationary / Fixed Trimmer Knife
Compatible Brand Mitsubishi
Material Hardened High-Carbon Steel
Why Replace Your Fixed Knife?
Because the fixed knife is stationary, it bears the brunt of the shearing force during every trim cycle. Over time, the edge can develop microscopic nicks or become dull, leading to "hanging threads" or the trimmer failing to cut entirely. If your machine is struggling to complete its trim cycle or leaving long, frayed tails,

Orders are typically processed within 1–3 business days.

We ship from our Georgia, USA warehouse. If an item is temporarily unavailable in the U.S., we source it through our global supplier network and will notify you of the estimated lead time.

Free shipping is available on U.S. orders over $99.

Once your order ships, you will receive a tracking number by email.

For urgent orders or shipping questions, please contact us before placing your order.

We stand behind the quality of the products we sell.

• Genuine OEM parts are covered by the manufacturer's warranty where applicable.

• Aftermarket and generic parts are covered against manufacturing defects.

• If you receive a damaged, defective, or incorrect item, please contact us within 30 days of delivery.

• Warranty does not cover damage caused by improper installation, misuse, normal wear, or modifications.

If you have any questions, our support team is happy to help before or after your purchase.