High Density Customized Hardness Felt Rock Hard wheel Flint Hard Wheel
Precision Optical Lapping
100% Wool Split Lap Buffing Wheel Paramount
Engineered for multi-axis robotic CNC finishing, master luthier instrument lacquering, aerospace metrology blading, and heavy automotive chrome. Built with dynamic radial slots providing real-time line-of-sight contact inspection and continuous frictional heat dissipation.
Anatomy & Performance
Structural Precision & Density Classification
Formulated through multi-layer high-density wool compression, precision-milled with beveled viewing ports to ensure steady compound lock and zero chatter during high-speed lapping.
Calibrated Hardness & Sizing Matrix
Available in 4″, 6″, and 7″ standard diameters across five distinct density grades—Soft, Medium, Hard, Rock Hard, and Flint Hard (0.65 g/cm³)—delivering tailored rigidity from delicate varnish buffing to heavy stock leveling.
4-Slot Vision & Dynamic Airflow
Precision-cut diagonal slots generate a transparent optical stroboscopic effect at high rotational speeds, providing unobstructed line-of-sight to the contact line while drawing ambient cooling air through the grinding zone.
Multi-Industry Applications
From Acoustic Instrument Lacquers to Metrology Labs
Master Luthier & Fine Instrument Varnish
Specially tuned for acoustic guitar soundboards, spirit varnishes, and nitrocellulose finishes. The slotted cooling prevents lacquer softening, friction haze, or burning around delicate bindings.
Guitar Lacquer
Soft/Medium Grade
Aerospace Metrology & Superfinishing
Attains optical surface smoothness down to Ra 0.005 μm on high-temperature titanium and nickel superalloy blades without distorting complex 3D aerodynamic profiles or leading edges.
Ra 0.005 μm
Rock Hard
Motorcycle Chrome & Billet Restoration
Engineered for high-pressure cut-and-color operations on aluminum casings, exhaust pipes, and custom chrome hardware, maintaining flat surface planes without wavy edge deformation.
Chrome Casing
Flint Hard
Export Standard Logistics
Cleanroom-Sealed & Heavy-Duty Palletized Shipping
To protect pure carbonized wool from moisture, dust, and fiber deformation during sea and air transit, every split lap disc is packed in an individual sealed anti-static polybag and organized in heavy-duty double-wall master cartons.
B2B Standard Matrix
Technical Parameters & Customization Capabilities
| Technical Parameter | Standard Production Matrix | OEM / ODM Custom Options |
|---|---|---|
| Raw Material Composition | 100% Pure Virgin Australian / NZ Wool | Carbonized Ultra-Clean Wool (Merino Grade) |
| Standard Diameters | 4″ (100mm), 6″ (150mm), 7″ (180mm), 8″ (200mm) | Custom diameters up to 12″ (300mm) |
| Face Width / Thickness | 3/8″ (10mm), 1/2″ (12.7mm), 5/8″ (16mm), 3/4″ (20mm) | Multi-ply bonded builds up to 50mm |
| Arbor Hole / Bore | 1/2″ (12.7mm), 5/8″ (15.8mm), 1-1/4″ (31.75mm) | Quick-mount flanged centers or pin holes |
| Hardness Classification | Soft (0.35 g/cm³), Medium (0.45 g/cm³), Rock Hard (0.55 g/cm³), Flint Hard (0.65 g/cm³) | Calibrated density from 0.30 to 0.75 g/cm³ |
| Slot Milling Geometry | 4 Radial Slots with Beveled Outer Rim | 2-Slot, 6-Slot, or Straight Slot Configurations |
| Operating RPM | 1,800 – 3,450 RPM (Bench Lap / Split Lap Motors) | High-speed dynamic balancing certified |
Technical Consultation
Frequently Asked Questions (FAQ)
Q1: How does the split lap wheel prevent burning or haze on delicate acoustic guitar spirit varnishes?
A: As the wheel rotates, the radial slots act as an integrated centrifugal fan, drawing ambient cooling air across the interface. Combined with the compliant elasticity of our Soft/Medium wool felt, frictional heat is reduced by over 40%, preventing varnish softening and friction hazing.
Q2: Can Rolking split lap wheels be integrated into automated robotic CNC polishing cells?
A: Yes. Our Rock Hard and Flint Hard discs feature concentric CNC punching and precision dynamic balancing, ensuring zero vibration or chatter during automated multi-axis robot arm polishing on aerospace turbine blades and medical prosthetics.
Q3: Which density grade is recommended for aggressive cut-and-color on billet motorcycle aluminum?
A: Flint Hard (0.65 g/cm³) is strongly recommended. Its rigid, non-yielding structure delivers maximum cutting aggression when paired with gray or green compounds, preserving sharp casing edges without rounding off bolt holes.
Q4: What abrasive compounds work best with these 100% pure wool felt discs?
A: The natural cuticle structure of virgin wool holds all industrial polishing media tightly—including diamond lapping pastes (0.25 to 15 micron), aluminum oxide, green chromium oxide, white rouge, and tripoli bars—with minimal compound sling.
Q5: What are the standard lead times and MOQ for private-label OEM export orders?
A: Standard export MOQ is 100 pieces per specification. We provide complete OEM services including laser-cut arbor bores, custom-printed color center labels with your brand logo, and vacuum-sealed export packaging boxes with a 7–12 day typical lead time.
