The Eplus3D EP-A650 is an SLA 3D printer from Eplus3D with a 650 x 600 x 400 mm build volume.
The Eplus3D EP-A650 is an SLA 3D printer from Eplus3D with a 650 x 600 x 400 mm build volume.
Eplus3D EP-A650: Technical Profile
Laser and Optics
The machine uses a 355 nm UV solid-state laser (Nd:YVO4 or Nd:YAG) with patented VarioBeam optics for dynamic beam-diameter switching. The automatic focus system maintains a facula diameter of ≤0.15 mm across the entire 650×600 mm build area. The galvanometric scanner is ScanLab-class or equivalent for high repeatability.
Platform and Mechanics
The Z-axis rides on a massive marble granite base (machine weight 1,050 kg) to absorb vibration and maintain Z repeatability. A high-precision ball-screw and linear guides deliver < 0.0005 mm Z-axis accuracy.
Build Volume and Layers
Volume: 650×600×400 mm.
Calibration: EP-A650
1. Automatic Laser Focus
The system self-calibrates focus at startup. Periodic manual verification (~every 250 hrs) with a calibration plate at five platform positions is recommended: target accuracy ≤±0.08 mm.
2. Resin Level and Temperature
Before each job check resin level and temperature (25–30°C). In cold rooms let the machine idle for 15 min to stabilise.
3. Platform Parallelism
After transport or relocation, repeat the levelling procedure.
Common Defects: EP-A650
Suction Cupping
Flat closed undersurfaces create a vacuum on platform lift. Fix: drainage holes, 10–15° tilt, reduced lift speed.
Undercure
Brittle or unbound sections: usually from reduced laser power or expired resin. Run the power test and check material expiry.
Warping
Thin horizontal plates develop internal stress. Orient parts vertically or add support ribs. Post-process at room temperature.
Layer Stepping on Curved Surfaces.
Use Cases: EP-A650
Master Models and Tooling
Ra < 0.1 µm straight off the machine is among the best results in industrial SLA: ideal for master models that minimise hand-polishing before silicone tooling.
Lost-Wax Casting
The large build area enables batch production of wax models for jewellery and aerospace investment casting with precise surface texture.
| Manufacturer | Eplus3D |
|---|---|
| Technology | SLA |
| Class | industrial |
| Build volume | 650 x 600 x 400 mm |
| Layer height | 50-200 µm |
| Kinematics | gantry |
| Enclosure | active |
| Auto levelling | no |
| Price | 95 000 EUR |
| Compatible materials | standard-resin, water-wash-resin, tough-resin, flex-resin, castable-resin, dental-resin, high-temp-resin |
| Price (EUR) | 95 000 EUR |
|---|---|
| Note | Reference from the database; no market source or date. |
| Manufacturer | Eplus3D |
|---|---|
| Technology | SLA |
| Class | industrial |
| Build volume | 650 x 600 x 400 mm |
| Layer height | 50-200 µm |
| Kinematics | gantry |
| Auto levelling | no |
same class and kinematics, close in price within 30 percent
| Model | Class | Kinematics | Build volume | Price (EUR) |
|---|---|---|---|---|
| Eplus3D EP-A650 (this) | industrial | gantry | 650 x 600 x 400 mm | 95000 |
| UnionTech Pilot 450 | industrial | gantry | 450 x 450 x 400 mm | 95000 |
| 3D Systems ProJet 6000 HD | industrial | gantry | 250 x 250 x 250 mm | 90000 |
| Kings 3D SLA 600 Pro | industrial | gantry | 600 x 600 x 400 mm | 90000 |
| Material |
|---|
| Standard Resin |
| Water-Washable Resin |
| Tough Resin |
| Flexible Resin |
| Castable Resin |
| Dental Resin |
| High-Temp Resin |