Fonland Laser

Product Description

Original BOCI (BOCHU) BLT421 BLT421T Fiber Laser Cutting Head Accessories

Original Part Code:

Upper Protective Window Drawer for BLT421/421T:P.S.M0240
Upper Protective Window D25.4xT4 for BLT421/421T:D21.5T2-4
Upper 2nd Protective Window Drawer for BLT421/421T:P.S.M0250
Upper 2nd Protective Window D25.4xT4 for BLT421/421T:D21.5T2-4
Collimator Drawer Assembly F100 for BLT421/421T:DP.M.Q0069AA
BLT421 Focus Drawer Assembly F150 for BLT421:DP.M.Q0090AA
Focus Drawer Assembly F200 for BLT421/421T:DP.M.Q0068AA
Lower 2nd Protective Window Drawer for BLT421/421T:DP.M.Q0078AA
Lower 2nd Spring‑Energized Seal for BLT421/421T:DP.P.T0078AA
Lower Protection Window Drawer for BLT421/421T:P.S.M0230
Spring‑Energized Seal for BLT421/421T:SRLC-P385
Lower Protection Window Drawer Door for BLT421/421T:DP.M.Q0082AA
Below 8KW Lower Protective Window D34xT5 for BLT421/421T:D34.0T5-4
Collision Protection Assembly for BLT421:DP.M.Q0210AA
Capacitive Sensor Module F150 for BLT421:DP.M.Q0089AA
Capacitive Sensor Module F200 for BLT421:DP.M.Q0059AA
Ceramic Body M11x0.75 for BLT421:Y.Z.C0034
Ceramic Lock Ring Fits M11x0.75 Ceramic for BLT421:P.S.J0020 M11*0.75
Focus Drawer Assembly F250 for BLT421T:DP.M.Q0200AA
Collision Protection Assembly for BLT421T:DP.M.Q0129AA
Capacitive Sensor Module F200 for BLT421T:DP.M.Q0130AA
Capacitive Sensor Module F250 for BLT421T:DP.M.Q0204AA
Ceramic Body for BLT421T:DY.C.A0004AA
Ceramic Lock Ring for M8x0.75 Ceramic Body for BLT421T:DP.P.T0005AA


These genuine spare & consumable parts are perfectly compatible with BOCI BLT421 and BLT421T fiber laser cutting heads.
Common available components include nozzle, ceramic body, locking ring and other replacement parts for your fiber laser cutting machine.
Adopted high‑precision manufacturing technology, these parts deliver excellent concentricity, stable cutting performance and long service life. Perfect for equipment maintenance when your original parts are worn, aging or damaged.
⚠️ Important Note: Each variant option contains ONLY ONE piece of selected accessory. Please adjust purchase quantity if you need multiple pieces before checkout.
Compatibility: Only fits BOCI BLT421 / BLT421T fiber laser cutting head. Kindly double‑check your cutting head model before ordering to avoid incompatibility.
Package Content: Exactly as per your selected variant option.
Should you have any questions about compatibility or installation, please feel free to contact us.

Accepted Payment Methods

• Primary Channels:

• Address Requirement:
Orders will only be dispatched to PayPal-verified shipping addresses (PO Box addresses excluded from fulfillment).

Payment Completion Deadline

Payment is required to be completed within 7 calendar days following the auction closure. Failure to pay within this period will lead to the opening of an unpaid item case via eBay's resolution system, and may cause account restrictions according to the platform policy.

Should any concerns arise regarding your purchase, we strongly encourage you to communicate with us via eBay Messages first. through eBay Messages before escalating via feedback or claims. Our Customer Success Team commits to:
• Acknowledging inquiries within 24 business hours
• Providing resolution options within 72 business hours

China Warehouse:
Global delivery available to all countries. Product prices exclude shipping fees unless explicitly marked as "Free Shipping". 
Customers are responsible for all applicable customs duties/taxes. We provide full customs clearance support. Please ensure contact information remains accessible post-purchase for logistics coordination. 
USA Warehouse:
Domestic U.S. shipments only. Free standard shipping applies to small/medium items and heavy/bulky goods (e.g., laser markers, chillers).
Additional fees may apply for deliveries to Hawaii, Alaska, and other remote U.S. territories. 
European(Czech Republic) Warehouse:
Pan-European delivery (excluding the UK). Free shipping with full customs clearance managed by us. 
UK Warehouse:
Domestic UK shipments only. Free shipping with no additional fees.
30-Day Satisfaction Guarantee
We accept returns with full refunds for any reason within 30 days of purchase. 
Return Packaging Requirements
Customers must retain the original packaging in its intact condition for all return procedures. 
Return Shipping Cost Allocation
• For small and medium-sized items: We cover all return shipping costs
• For large equipment (e.g., laser marking machines, chillers, laser tubes): If the return is due to reasons unrelated to product defects (e.g., buyer’s remorse, incorrect order), the customer is responsible for return shipping costs.

Warranty Coverage
We offers a limited warranty for products purchased directly from Fonland eBay Store.
This warranty applies only to products that are defective or malfunctioning due to manufacturing defects and does not cover damages caused by improper use, abuse, or accidents.

Warranty Conditions
●The warranty is valid only for the original purchaser of the product.
●The warranty covers manufacturing defects in materials and workmanship.
●Notification:  The laser source will gradually lose some power after a long time of operation, which is a common phenomenon, it is a common phenomenon. We do not recommend customers to run the laser source at full power for long-time, it is recommended to run the laser source around 80%~85% of power in most condition which can make the lifespan of the laser source longer.
●The warranty does not cover damages caused by:
(1)Improper installation, misuse, abuse, neglect, or unauthorized modifications.
(2)Use of components not approved by Fonland.
(3)Natural disasters (fire, flood, lightning, etc.), power surges, or improper power supply.
(4)Failure to maintain or clean the parts as per the recommended guidelines.
(5) Products that have been tampered with or had their serial numbers removed or altered.
●Any and all Fonland limited warranties will NOT be applied or upheld on the specific machine parts listed below, since they are metal processing parts, there is no actual possibility of malfunction:
Transparent Acrylic Cover/Protective Hood
(1)X & Y-Axis Gantry Rails/Guide Rails
(2)Workstations
(3)Rotary Attachments
(4)Base of the Machine/Leg Stand/Columns
Warranty Service
●Should the part become defective within the warranty period, Fonland will, at its discretion, repair or replace the part at no charge to the customer.
●Customers must contact Fonland's support team at our email ( you can get it after purchase) to initiate a warranty claim.
●The customer must provide proof of purchase (order number and date), along with clear pictures or videos of the defective part, to assess the claim.
Disclaimers
Fonland makes no other express warranties. Nor does it make any implied warranties, including but not limited to warranties of merchantability or fitness for a particular purpose. Fonland is not liable for any incidental, special, or consequential damages resulting from the use or inability to use the product, whether or not advised of the possibility of such damages

Contact Information After Purchase:
Upon order confirmation, you may securely obtain our contact details (including email and WhatsApp) through eBay's messaging system. 

Additional Business Services:
Beyond standard eBay listings, we offer tailored solutions for wholesale purchases, OEM customization, and enterprise offline orders. For inquiries, please contact us directly through eBay Messages for further assistance.