Resin 3D printer RA900

industrialSLAfor continuous operation

Product Overview
RA900 is a dual‑laser stereolithography (SLA) 3D printer engineered for tyre mould mass production. It provides a 950 × 550 × 400 mm build volume and can produce four medium‑sized tread moulds within 36 h (typically < 10 h per mould), replacing conventional CNC workflows that require 2–3 weeks. The system includes UnionTech's UT‑ONE software for one‑click nesting and automated support generation. Typical metrology: surface roughness Ra < 3.5 µm, dimensional accuracy ±0.08 mm, roundness deviation < 0.05 mm and point deviation < 95%, meeting requirements for ventless, insert‑free tyre moulds. Continuous‑run yield exceeds 95%, supporting zero‑inventory and lot‑size‑one production.

Key Features

• Ultra‑fine printing: Surface roughness Ra < 3.5 µm; roundness deviation ≤ 0.05 mm; dimensional accuracy ±0.08 mm; point deviation < 95%; optimized for complex tire tread geometries.
• Efficient production: Dual‑laser configuration and large build volume (950 × 550 × 400 mm) enable printing of up to 4 tire base molds simultaneously.
• Operational stability: Continuous operational yield > 95%; enclosed optical path design for long‑term stability.
• Intelligent operation: UT‑ONE 'One for All' workflows for automatic part placement, automatic support generation and production scheduling.

Technical Data (table)
Build Volume: 950 × 550 × 400 mm
Layer Thickness: 0.05–0.25 mm
Accuracy: L < 100 mm: ±0.1 mm / L ≥ 100 mm: ±0.1% × L; Dimensional Accuracy: ±0.08 mm
Laser: 2 Lasers, Solid‑state Triple Frequency Nd:YVO4
Beam Size: 0.07–0.85 mm
Scanning Speed: 6–18 m/s
Wavelength: 355 nm
Controlling Software: RSCON
Preprocessing Software: PolydevsPro, BPC
Operating System: Windows 10
Data Interface: .stl
Electrical Requirements: 100–240 VAC, 50/60 Hz, 3.0 kVA
Temperature Range: 22–26 °C
Relative Humidity: < 40%
Resin Vat Capacity: 370 kg
Resin Vat Dimensions: 997 × 787 × 457 mm
Printer Dimensions: 2152 × 1445 × 1836 mm
Printer Net Weight: 1100 kg

Specifications

• Model: RA900
• Technology: Stereolithography (SLA), dual‑laser
• Build volume: 950 × 550 × 400 mm
• Layer thickness range: 0.05–0.25 mm
• Surface finish capability: Ra < 3.5 µm
• Dimensional accuracy: ±0.08 mm (general), L < 100 mm: ±0.1 mm; L ≥ 100 mm: ±0.1% × L
• Roundness deviation: < 0.05 mm
• Beam size: 0.07–0.85 mm
• Scanning speed: 6–18 m/s
• Laser wavelength: 355 nm
• Control software: RSCON; Preprocessing: PolydevsPro, BPC; UT‑ONE for automated nesting/supports
• Data input: .stl
• Electrical: 100–240 VAC, 50/60 Hz, 3.0 kVA
• Environmental: 22–26 °C; relative humidity < 40%
• Resin vat: capacity 370 kg; dimensions 997 × 787 × 457 mm
• Printer physical size: 2152 × 1445 × 1836 mm; net weight 1100 kg