Plywood Double-Side Core Calibration Sander

Plywood Double-Side Core Calibration Sander Technical Specifications

• Working width: 40–1300 mm

• Working thickness: 3–120 mm

• Working length: ≥850 mm

• Sanding belt speed: 24 m/s

• Feeding speed: 5–40 m/min

• Sanding belt size: 1350 × 2850 mm

• Diameter of contact roller: Ø400 mm steel roller × 2

• Total motor power: 160.5 kW

• Main motor power: 75 kW × 2

• Motor power of feeding: 7.5 kW

• Motor power of lifting: 1.5 kW

• Motor power of brushing: 0.75 kW × 2

• Voltage requirement: 380V, 50Hz, 3 Phase

• Working air pressure: 0.55 MPa

• Compressed air consumption: 0.18 m³/min

• Speed of suction: 25–30 m/s

• Volume of suction: 25,000 m³/h

• Overall dimension: 2400 × 3200 × 3200 mm

• Net weight: 14,500 kg

Configuration List

• Main motor: HUALI

• Reducer: SUPROR / DONGZHENG

• AC circuit contactors & breakers: SIEMENS (dual-motor) / CHNT (single-motor)

• Pneumatic components: AirTAC

• Contact roller bearing: NSK

• Bearing with seat: FSB

• Photoelectric sensor: OMRON / BANNER

• Frequency converter: SIEMENS

• PLC: SIEMENS

• Touch screen: SIEMENS

Why Choose this Model for Plywood Core Calibration?

1. Heavy-duty structure – The machine frame is welded from heavy steel plates, ensuring strong rigidity, high reliability, and stable operation.
2. Precision-calibrated steel roller – The 400 mm diameter steel roller is dynamically balanced for excellent thickness calibration, delivering superior sanding flatness and surface smoothness.
3. Reinforced roller shaft – The sanding roller shaft heads are forged for higher rigidity and hardness. Bearings are hot-fitted to prevent impact damage and extend service life.
4. Heavy-duty cantilever – The thickness calibration roller cantilever is welded from heavy steel plates, providing high strength, deformation resistance, and stability.
5. High-precision lifting system – The lifting mechanism uses a worm gear and high-precision ball screw, achieving sanding accuracy up to ±0.05 mm.
6. Variable-speed feeding – High-power frequency conversion feeding system ensures smooth and stable material feeding, improving production efficiency.
7. Synchronous dual-drive design (for dual-motor models) – Integrated dual-drive system ensures excellent synchronization, prevents sheet slipping, and guarantees uniform sanding speed.
8. Smart control system – PLC with touch screen for visualized operation, self-diagnosis of faults, and easy, reliable control.
9. Flexible operation – Cantilever control panel allows for more ergonomic and convenient operation.

Why Choose Double-Side Calibration Sander?

Uniform Thickness — Synchronized sanding from both sides keeps the board balanced, ensuring precise and consistent thickness.

Faster Production — Double-sided sanding in a single pass doubles efficiency and saves time.

Stable Shape — Balanced pressure from top and bottom prevents warping and keeps boards straight and reliable

Suitable Boards:

1. Multi-ply Plywood

   • Typical thickness: 12–30 mm

   • High precision required (±0.1–0.3 mm)

   • Used for furniture, construction, and high-end decoration

2. Decorative Plywood / Face Veneer Plywood

   • Surface must be flat and smooth

   • Suitable for laminating or painting

3. MDF (Medium Density Fiberboard) or Blockboard

   • Requires good thickness uniformity

   • Often used for secondary furniture processing

Less Suitable For:

• thin boards (easily damaged by top and bottom rollers)

• Extra-thick or heavy-duty industrial boards (may require larger specialized sanders)

• Rough primary boards (with many defects, better to pre-sand using the single-side sander)

Who Should Choose the Double-sided Calibrating Sander?

High Precision Boards — Ensures flat, smooth surfaces with strict thickness tolerance (±0.1–0.3 mm).

Medium-thick / Multi-ply Plywood — Double-sided sanding keeps multi-layer boards uniformly thick.

Efficiency-focused Production — Reduces labor and enables continuous, automated operation.

High-end & Export Customers — Meets strict quality standards for premium markets, minimizing rework.