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Help CenterXiongxing Bracelet Forming Machine | Jade Annular Cutting Equipment | Inner Support + Outer Pressure Clamping System | Jewelry Processing
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Xiongxing XX-886 Bracelet Forming Machine
Model: XX-886
Serial No.: 811101225
I. Product Introduction
The Xiongxing XX-886 Bracelet Forming Machine is specifically designed for the jewelry and jade processing industry. It efficiently and precisely extracts circular bracelet, ring, and safety buckle blanks from gemstone and jade raw materials, serving as a critical pre-processing step before fine polishing.
II. Working Principle
This machine uses an annular cutting principle with a hollow core drill bit. Driven by the main spindle, the diamond-tipped hollow core bit rotates at high speed to perform circular cutting on flat stone materials. Unlike solid drilling, the hollow core bit only cuts the annular area while preserving the central core. This reduces the effective cutting area by 65–75%, lowering power demand and heat accumulation. Machining accuracy can reach ±0.05 mm with excellent surface finish.
The unique “inner support + external pressure” clamping system firmly holds the flat stone. The operator smoothly feeds the drill downward, and the hollow bit completes the annular cut, producing a ring blank. An auxiliary cooling system continuously supplies coolant during processing to remove heat and dust, preventing thermal cracks in the gemstone.
III. Core Advantages
1. Precision Annular Cutting – Maximizes Material Savings
Only the annular area is cut; the central core remains intact. Significantly reduces raw material waste compared to traditional methods, especially for high‑value natural jade and gemstones.
2. Innovative “Inner Support + External Pressure” Clamping System
The fixture simultaneously supports from the inside and applies pressure from the outside, ensuring uniform force distribution and rock‑solid stability during cutting. Effectively prevents brittle stones from cracking, greatly increasing yield.
3. “Inside‑Out” Smart Cooling System
Coolant is sprayed from the center of the drill bit outward, reaching the “dead zones” deep inside the cut. Quickly removes heat and debris, enabling near‑ambient cutting that avoids thermal stress and extends drill bit life.
4. Wide Stepless Speed Adjustment – One Machine for Multiple Materials
Main spindle speed is continuously adjustable from 280 to 3600 r/min. Low speeds for hard, brittle materials (e.g., jadeite, agate); high speeds for softer materials. Ensures optimal cutting results across various stone types.
5. User‑Friendly Operation for High‑Efficiency Batch Production
Simple and clear structure requires low operator skill. One person can manage several machines simultaneously, meeting mass production needs.
6. Complete Compatibility with Full Processing Line
Excellent price/performance ratio (starting from as low as USD 1000/unit FOB). Works seamlessly with slab cutters, outer‑diameter grinders, inner‑diameter grinders and other equipment, covering the entire bracelet production process. An ideal choice for upgrading jewelry manufacturing lines.
IV. Main Technical Parameters
Parameter Value
Input Voltage AC 220V / 380V (selectable)
Output Power 550 W
Motor Speed 1400 r/min
Spindle Speed 280 – 3600 r/min (adjustable)
Overall Dimensions (L×W×H) 145 × 80 × 75 cm
V. Installation & Setup
1. Unpacking Inspection
Check that the machine is intact and all accessories (diamond core drill bit, etc.) are present.
2. Machine Placement
Place the machine on a sturdy, level workbench. Ensure all four feet are stable with no wobbling.
3. Power Connection
Verify that the site power matches the machine’s input voltage (AC 220V or 380V). Connect the power cord to the socket on the back panel and plug the other end into a properly grounded outlet.
4. Coolant System Connection
Connect the coolant hose to the machine’s coolant port. Install a coolant reservoir. Ensure the line is unobstructed and leak‑free.
5. Test Run
Start the machine with no load. Check that the spindle runs smoothly without abnormal noise, the coolant system works properly, and all control buttons function correctly.
VI. Operation Guide
1. Wear Protective Gear
Always wear safety goggles, a dust mask, and work gloves before operation to prevent injury from flying debris and dust inhalation.
2. Material Mounting & Centering
Place the flat stone slab onto the “inner support + external pressure” fixture. First adjust the inner support to hold the inner area, then tighten the external pressure clamp to secure the stone edges. Ensure the stone is completely fixed. Adjust the worktable position so that the center of the hollow core drill bit aligns with the desired inner diameter center of the bracelet.
3. Speed Selection
· For hard or thick materials → low speed (280–1000 r/min)
· For medium‑hardness materials → medium speed (1000–2500 r/min)
· For soft materials or surface cutting → high speed (2500–3600 r/min)
Start at a lower speed and adjust gradually based on chip evacuation and cutting results.
4. Start the Coolant System
Always start the coolant system before starting the spindle. Ensure coolant is fully spraying onto the cutting area. Never cut without coolant.
5. Feeding & Cutting
Slowly lower the feed handle for a steady feed. Maintain a constant downward pressure during cutting. Do not feed too quickly or shake the stone. When approaching the end of the cut, reduce feed speed slightly and pass through the stone smoothly.
6. Removing the Blank
After cutting, stop the spindle. Wait until the spindle comes to a complete stop, then release the clamps. Carefully remove the ring blank for subsequent polishing. If needed, take the remaining core from inside the hollow drill bit for other uses.
7. Shutdown & Cleaning
Turn off the power after finishing work. Clean the worktable, remove stone chips and coolant residues. Maintain the diamond core drill bit for next use.
VII. Processing Flow Chart (Position of XX-886)
Selection → Slab design & cutting → Bracelet ring design & blank forming → Ring shape determination → Chamfering → Outer diameter shaping → Inner diameter shaping → Post‑processing
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