HALANSM® HALANSM BW101-GS Welding Gun Spare Parts Kit
Locking Nut, Protective Window Drawer, Mounting Bolt, Pressing Ring and Focus Lens Assembly for Raytools / Empower Jiaqiang BW101-GS 4-in-1 Handheld Fiber Laser Welding Head.
Product Overview
What it is: This kit is a set of precision mechanical and optical spare parts for the Raytools / Empower Jiaqiang BW101-GS 4-in-1 handheld fiber laser welding head. It covers the full replacement stack that holds the protective window and focus lens in place: locking nut, drawer-type holder, mounting bolt, pressing ring, seal ring and focus lens assembly.
Where it fits: Use it when rebuilding the optical path of a BW101-GS welding gun: the drawer holds the focus lens and cover glass, the locking nut and bolts clamp it to the head, and the pressing ring plus seal ring keep the optical seat dust-tight and centered.
Compatible equipment: Compatible with BW101-GS series heads (2 kW / 3 kW single-galvo, QBH interface) and the rebadged Empower Jiaqiang BH03K 4-in-1 handheld head. HALANSM parts are aftermarket replacements; Raytools, Empower and Jiaqiang are third-party trademarks shown only for compatibility identification.
Step 1: Power down the laser source and discharge the circuit before any work on the welding head.
Step 2: Loosen the mounting bolts and pull out the drawer-type holder of the focus lens (per the official BW101-GS manual procedure).
Step 3: Remove the pressing ring, seal ring and cover glass from the bottom of the holder; inspect the seal ring and replace it if damaged.
Step 4: Install the cleaned or new cover glass and focus lens, then the pressing ring. Do not overtighten -- finger-tight plus a small torque only.
Step 5: Re-insert the drawer, tighten the locking nut and bolts evenly, then seal the mounting openings with textured tape immediately to keep dust out.
Frequently Asked Questions
Which welding heads does this kit fit?
It fits Raytools / Empower Jiaqiang BW101-GS (2 kW and 3 kW single-galvo) and the rebadged Empower Jiaqiang BH03K 4-in-1 handheld head. It also fits other QBH-interface handheld heads once you confirm the thread and optical seat. Always send your head label or a photo to HALANSM before ordering.
Is this an original Raytools / Jiaqiang part?
No. HALANSM spare parts are aftermarket / compatible replacements. Raytools, Empower and Jiaqiang are third-party trademarks used here only for compatibility identification, not as a claim of original-equipment status.
What is the drawer used for?
The drawer-type holder carries the focus lens and cover glass (protective window). The official manual describes loosening bolts, pulling the drawer out, then removing the pressing ring, seal ring and cover glass -- so the whole optical stack can be cleaned or replaced in minutes.
How do I choose between 150 mm and 200 mm focus-lens focal length?
The standard BW101-GS uses a 150 mm focusing lens; some BH03K variants offer 200 mm as an option. Check your head specification or label. Using the wrong focal length changes the spot size and weld quality, so confirm before ordering.
How tight should the locking nut and bolts be?
Tighten evenly until the drawer seats firmly, then stop. Overtightening can deform the optical seat or crack the protective window. The official procedure only says to loosen bolts to remove the drawer and tighten them to re-insert it; exact torque values vary by head variant -- confirm with your supplier.
When should I replace the seal ring?
Replace the elastic seal ring whenever you see dust inside the holder, the seal is compressed or cracked, or the optical path shows contamination. The official manual explicitly states that a damaged elastic seal ring should be replaced.
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