The Japanese Fine Techno AF20 pneumatic floating spindle is composed of an AF20 floating tool holder combined with an outer diameter φ20 pneumatic spindle, specially developed for automated precision deburring and fine chamfering in small industrial robots. Air-floating bidirectional floating structure, radial 360° all-directional ±5° swing, axial 5mm expansion compensation; By precisely controlling the buoyant force through precise pressure regulation, the tool maintains flexible, constant force contact with the workpiece. Automatically absorbs workpiece shape tolerances and clamping positioning deviations, solving problems such as rigid grinding overcutting, burr leakage, and edge chipping in small die-cast parts and 3C precision parts. Compact and lightweight, suitable for mounting at the end of small robotic arms, it is the preferred flexible grinding device for precision blade cleaning with small margins. Chunheng Tools is in stock with technical support.
Product structure composition
? AF20 Floating Tool Holder (Air-Floating Body, Core Compensation Unit)
? φ20 pneumatic spindle (power unit, optional speeds 8000rpm / 30000rpm)
The entire set forms an integrated floating machining unit, holding rotary files, taper milling cutters, and grinding heads to complete deburring and chamfering.
Core advantages
1. Bidirectional air buoyancy compensation, adaptive shaped profiles
Radial 360°±5° universal swing, axial 5mm floating stroke; Automatically bonds the edges of curved surfaces, corners, and crossed holes; even slight dimensional fluctuations of the workpiece do not affect processing results.
2. Adjustable air pressure and constant force to protect the workpiece reference
Floating power: 0.05~0.2MPa, steplessly adjustable, soft plastics and zinc-magnesium alloy low-pressure light touch without scratching; For aluminum parts and castings, the pressure is increased to steadily remove parting lines, avoiding excessive collapse angles.
3. Lightweight and compact design, compatible with small robotic arms
The entire machine is compact and lightweight, requiring low load requirements for robots. The six-axis small robotic arm can be installed directly, allowing flexible deployment in tight workstations.
4. Lowers the threshold for robot commissioning and shortens production line delivery cycles
The floating mechanism automatically compensates for errors, eliminating the need for ultra-high-precision robot trajectory programming, reducing debugging difficulty, and ensuring stable yield, making it suitable for mass automated production lines.
5. Wide compatibility with consumables, quick tool change
Supports various consumables such as rotary files, taper milling cutters, diamond grinding heads, and wire brushes. One floating unit also handles deburring and fine chamfering within 0.5mm.
6. Original imported quality with high return accuracy
Original Japanese Fine Techno floating tool holders with stable sealing and good consistency in long-term continuous operation floating returns, suitable for 24-hour automated production lines.
Technical specifications
Product Model: AF20 Pneumatic Floating Spindle (AF20 Floating Tool Shank + φ20 Pneumatic Spindle)
Floating structure: air-flotation bidirectional floating
Radial float: 360° in all directions, ±5°
Axial float: up to 5mm
Buoyancy adjustment air pressure: 0.05~0.2MPa
Spindle mounting outer diameter: φ20mm |
Spindle speed options: 8000rpm / 30000rpm
Compatible materials: zinc alloy, magnesium alloy, aluminum alloy, resin plastic, sand core, small cast iron parts
Applicable processing: burrs on parting lines, tiny sprue nozzles, edge flash, chamfers below 0.5mm, and crossed hole edges
Mounting type: Small industrial robot terminal mount
Industry application case explanation
Case 1|3C Zinc alloy housing: automated deburring
Workpiece: Zinc alloy precision structural parts, burr allowance on parting line ≤0.2mm, no scratches on the surface surface, easy overcutting at corners.
Solution: AF20 floating tool holder + 30,000 RPM Chinese-Western pneumatic spindle + rotary file, equipped with a small six-axis robot.
Effect: Floating automatic compensation for die-cast workpiece deformation, product yield increases from 78% manual to 98%; Deburring time per piece is reduced by 40%, with no sagging or scratches on the exterior, and stable mass production within 24 hours.
Case 2 | Micro chamfer of automotive aluminum alloy valve body + parting line cleaning
Workpiece: Small aluminum alloy valve body for new energy vehicles, burrs on the edge of the orifice, required to be a fine chamfer of C0.3.
Solution: AF20 floating spindle, pressure regulation 0.08MPa, taper milling cutter.
Effect: Solves uneven chamfer sizes of rigid tool holes and floating adaptive casting positioning deviations; Chamfers are uniform and stable, avoiding damage to the valve body sealing standard.
Case 3 | Resin dashboard bracket + cast sand core deburring
Workpieces: resin injection molded parts, cast sand cores, materials that are relatively soft and prone to scratches.
Solution: AF20 floating spindle low-pressure mode, diamond grinding head.
Effect: Low-pressure flexible contact, removes burrs on parting lines without scratching the product surface; The complex curved surface of the sand core is automatically followed, greatly reducing manual finishing steps.
Applicable industries
? 3C precision die casting: zinc alloy housings and connector structural components
? New energy vehicles: small valve bodies, precision die-cast motors
? Injection-molded resin parts: instrument panel and plastic casing parting line cleaning
? Casting industry: removal of flash from sand cores and small casting gates
Recommended supporting consumables
Rotary files, taper milling cutters, diamond grinding heads, diamond grinding plates, wire brushes
Purchase and Service Instructions
– Original AF20 floating tool holder from Japan Fine Techno, complete floating spindle set available in stock
– Chunheng Tools, an authorized agent for imported precision tools, offers free process samples and robot installation guidance
– We can provide on-site process testing, selection of processing solutions, and after-sales technical support
> Friendly reminder: The floating unit must be paired with a precision pressure regulating valve to control the floating force; Before selection, confirm the robotic arm load to match the weight of the entire AF20 device.
