Smart Laser Cutting Head-BOCI-BLT311 (4KW)
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Product overview
Overview
Smart Laser Cutting Head-BOCI-BLT311 (4KW)
Smart Laser Cutting Head-BOCI-BLT311 (4KW) is an intelligent laser cutting head for sheet cutting applications that require compact structure, stable autofocus control, and real-time process monitoring.
BLT311 is the updated model replacing BLT310 in the BOCHU BLT3 series selection table. It supports 4KW applications, 150mm or 200mm focal length options, and QBH/EOC fiber interface configurations.
Best For
- Fiber laser sheet cutting machine integration, retrofit, or head replacement projects.
- Buyers comparing focal length, rated power, optical interface, sensors, and consumables.
- Service teams that need compatible protective lenses, ceramic parts, anti-collision parts, and manuals.
Compatibility
- This product replaces the previous BLT310 listing according to the BOCHU product change notice.
- Available focal length options: 150mm and 200mm.
- Fiber interface: QBH/EOC.
- Confirm rated laser power, optical connector, focal length, cooling circuit, cutting gas setup, control signal, and consumables before ordering.
- Related reference: Laser Consumables
- Related reference: Protective Lens
- Related reference: Nozzle
- Related reference: Ceramic Body
Specifications
Model Selection
| Series | Cutting Type | Power | Model | Focal Length | Interface |
|---|---|---|---|---|---|
| BLT3 Series | Sheet cutting | 4KW | BLT311 | 150mm, 200mm | QBH/EOC |
Technical Specifications
| Parameter | BLT311 |
|---|---|
| Laser Wavelength | 1030-1090nm |
| Laser Power | 4KW class |
| Fiber Interface | QBH/EOC |
| Focal Length | 150mm / 200mm |
| Spot Magnification | M=1.5 / 2.0 |
| Maximum Focus Adjustment Range | +/-50mm |
| Centering Adjustment Range | +/-1.5mm |
| Focusing Acceleration | 7.5m/s2 |
| Cutting Gas Interface | Diameter 10mm, max 25bar (2.5MPa) |
| Nozzle Cooling Gas Interface | Diameter 6mm, max 5bar (0.5MPa) |
| Water Cooling Interface | Diameter 8mm, max 5bar (0.5MPa), min flow 2.0L/min |
| Working Temperature | 5-55 C |
| Storage Temperature | -25 to +55 C |
Updated Consumable Reference
| Item | BLT311-150G | BLT311-200 |
|---|---|---|
| Upper Protective Lens | D25.4T4-2H | D25.4T4-2H |
| Lower Protective Lens | D25.4T4-2S | D25.4T4-2S |
| Focusing Drawer Assembly | DP.M.Q0419AA | DP.M.Q0215AA |
| Collimation Drawer Assembly | DP.M.Q0421AA | DP.M.Q0421AA |
| Anti-Collision Component | DP.M.Q0210AA | DP.M.Q0210AA |
| Capacitive Sensor Head Module | DP.M.Q0211AA | DP.M.Q0213AA |
| Ceramic Lock Ring | P.S.J0020 | P.S.J0020 |
| Ceramic Body | M11*0.75 | M11*0.75 |
Downloads
Before Ordering
Product images are for reference only. Confirm the required focal length, fiber interface, controller compatibility, and consumables before ordering.
BOCHU's product change notice lists BLT311 as the updated model replacing BLT310, with the change expected in early August 2026.
FAQ
Which BLT311 option should I choose?
Select the focal length and interface that match your machine configuration. BLT311 supports 150mm and 200mm focal length options with QBH/EOC interface configurations.
Is BLT311 the same as BLT310?
BLT311 is the updated BOCHU model replacing BLT310 according to the product change notice. Confirm mechanical, optical, and consumable compatibility before ordering replacements for older machines.
Can I request technical documents?
If a manual or datasheet is not listed on the page, contact Sky Fire Laser with the product model and intended application before ordering.
packing weight: 4.5 kg; packing size:405mmx119mm
Shipping Information
Shipping Time and Costs
- Delivery Timeframe: 5-10 business days.
- Machines: Fees calculated at checkout or via email at info@sflaser.net.
- Accessories: Fees calculated at checkout or via email.
- Consumables: Shipped free of charge.
IMPORTANT NOTICE: Free shipping is exclusive to laser consumables. For discrepancies at checkout, contact us for actual shipping costs.
Tariff Policy
- Offline Payments: Tariffs based on trade terms. Export duties are covered by us under FOB, CFR, or CIF terms; import duties by the customer. For DDP, all duties are covered by us.
- Online Payments: Export duties are covered by us; import duties by the customer. Check "Tariff Rate" on our website for specifics.
Order Tracking
- Confirmation: Receive an email upon successful order placement.
- Shipping Notification: Includes order number, courier, and tracking number. Track your order via email for updates, modifications, and shipping details.
Important Notes
Delivery Address
- Confirm your address before finalizing your order. To change it, email info@sflaser.net within 48 hours of purchase.
Damage and Returns
- For transit damage due to force majeure, contact support@sflaser.net immediately upon receipt.
- To cancel an order, contact us rather than refusing the package to avoid risks of loss or damage.
Non-receipt and Package Damage
- If not received within 7 days past the delivery date, email support@sflaser.net. We are not liable for delays not reported within this timeframe.
- Report any package or product damage on the day of receipt with photos/videos to support@sflaser.net for assistance.
Technical Support After Purchase
- For technical support, take detailed inventory and photos of unpacked items and contact support@sflaser.net promptly. We provide support via email or online contact.
1. Overview
We strive for your satisfaction with every order. Understanding that returns may sometimes be necessary, we offer a refund in USD, provided the goods meet our policy requirements.
2. How to Return
Before Delivery
- Email: Send a request to info@sflaser.net to cancel and refund your order.
- Note: Avoid initiating a bank refund to prevent fees and delays. Any bank fees incurred will be deducted from your refund.
After Delivery
- Email: Contact info@sflaser.net for return assistance.
- Conditions: Adhere to our return conditions. Be prepared for a service fee and transportation costs.
3. Return/Refund Conditions
Returns within 15 days of delivery are accepted under the following conditions, along with the original receipt and a refund service fee:
- Not Packed, Not Shipped: 4.4% service fee for machines, accessories, and consumables.
- Packaged, Not Shipped: 10% for machines; 20% for accessories and consumables.
- Shipped, Unopened: 20% for machines; 25% for accessories and consumables.
- Opened, Unused: 30% for machines; 50% for accessories and consumables.
- Opened, Used: 50% for machines; 80% for accessories and consumables.
Important: Service fees apply due to instant fund deductions by payment platforms. Bank charges, taxes, and shipping expenses are deducted from refunds. No exchanges. Items must return in pristine condition, with machinery/components having no more than 3 uses. Stand-alone consumables are non-returnable. For laser service products, our company does not accept refunds.
4. Refund Processing Time
- Packing Details: Include a packing list, order number, and customer name in your return package.
- Tracking: If returning the order yourself, email the tracking number to support@sflaser.net.
- Timeline: Refunds typically processed in 10-15 business days post-return inspection. Confirmation emails will be sent, followed by bank processing.
5. Disclaimer
- Approval: Only approved returns are accepted.
- Rights: Sky Fire Laser reserves the right to refuse returns not meeting policy requirements.
- Shipping: Returns must be sent to the address provided in your return confirmation. No on-site returns.
6. Questions?
For any inquiries, email us at info@sflaser.net.
1 year (excluding consumables such as lens, nozzles, ceramics, etc.)
If you choose CIF shipping, you will need to pay customs duties yourself.
If you choose DDP shipping, we can help handle customs clearance for you.
Please contact us by email for further details.
Most of our packages are currently shipped from Wuhan, China.
For customers in the United States, certain products such as laser welding machines will be shipped directly from our U.S. warehouse. More products will be gradually added to the U.S. warehouse inventory.
The standard shipping cycle is normally 3–7 business days for order processing and dispatch when purchasing a single unit.
For bulk orders involving a larger quantity of items, the processing time may be extended accordingly. We will inform you of the estimated dispatch schedule once the order details are confirmed.
- International Shipping: Please be aware that for orders shipped internationally, any customs fees incurred will be the responsibility of the customer. These fees are not covered by our shipping charges.
- Refund Processing Fee: For orders that have not been packed or shipped, a refund processing fee will apply. This fee is due to the immediate deduction of funds by payment platforms such as PayPal, Visa, etc., and will be calculated as a percentage of the total order cost.
