VTS300 Mechanical-Bearing Lead-Screw Z-Axis Stage
Description
Design Features
- Extreme load carrying capability, up to 450 kg, in a compact package
- Small stage footprint
- High resolution to 0.064 µm
- Lead screw does not back-drive, allowing "set and forget" operation and excellent in-position stability
- Vacuum compatible
Aerotech’s VTS300 accurately positions loads up to 450 kg and the small volume allows the positioning of high loads in space-constricted applications. Typical applications range from step and settle placement to large force generation. Multiple units can be combined for lift and tip/tilt motion.
Outstanding Design and Construction Features
The VTS300 series stages incorporate the highest quality components to provide superior positioning performance over a long lifetime. The base and table are fabricated from high hardness, high stiffness special alloy aluminum.
Pre-loaded angular contact ball-bearings support the 0.1 inch/rev precision lead-screw. The table moves on linear motion guide bearings providing excellent payload capability and long-life, even with heavy offset loads. The linear bearings also provide outstanding accuracy as well as exceptional flatness and straightness specifications over the length of travel.
Angular contact ball-bearings transmit shear forces and support excellent translation characteristics even with heavy loads. The anodized tabletop has a steel insert to support a tooling ball upon which the load would rest, providing a point lift for tip/tilt configurations.
The VTS300 series stages are available with matched stepping or brushless servomotors. The motor drives a high capacity 90° gearbox.
Options Include Vacuum Preparation for 10-6 torr
A number of options increase the flexibility of the VTS300 series stages for a wide range of applications. Vacuum preparation for operation in vacuum chambers to 10-6 torr is available. The stage also has movable limit switches so that customers can adjust the travel range.
Specifications
Mechanical Specifications
| Model | VTS300-050 | VTS300-100 | VTS300-150 | VTS300-200 | ||
|---|---|---|---|---|---|---|
| Travel | 50 mm | 100 mm | 150 mm | 200 mm | ||
| Drive System | Precision Lead | |||||
| Resolution | 0.1 in/rev Lead | 0.064 µm @ 4000 steps/rev motor resolution | ||||
| Maximum Travel Speed | 0.1 in/rev Lead | 5 mm/s | ||||
| Maximum Load | Vertical | 225 kg with NEMA 23 motor; 450 kg with NEMA 34 motor | ||||
| Side | 90 kg | |||||
| Accuracy | ±25 µm | ±50 µm | ±75 µm | ±100 µm | ||
| Bidirectional Repeatability | ±10 µm | |||||
| Straightness and Flatness(1) | Differential | HALSF | ±10 µm/25 mm | |||
| Standard | ±20 µm/25 mm | |||||
| Pitch and Yaw(1) | ±10 arc sec | ±20 arc sec | ±30 arc sec | ±40 arc sec | ||
| Nominal Stage Weight | Less Motor | 20 kg | 30 kg | 36 kg | 42 kg | |
| With Motor | 22 kg | 32 kg | 38 kg | 44 kg | ||
| Material | Stage and Table | Aluminum | ||||
| Finish | Stage and Table | Black Anodize | ||||
- Straightness, flatness, pitch and yaw performance is load dependent. Values listed are for the no-load case.
Electrical Specifications
| Drive System | Brushless Rotary Servomotor |
| Feedback | Rotary Encoder on Motor |
| Maximum Bus Voltage | Up to 320 VDC |
| Limit Switches | 5 V, Normally Closed |
Recommended Controller
| Multi-Axis | A3200 | Ndrive MP/Ndrive CP/Ndrive HLe/Npaq MXR |
| Ensemble | Ensemble MP/Ensemble CP/Ensemble HLe/Epaq | |
| Single Axis | Soloist | Soloist MP/Soloist CP/Soloist HLe |
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VTS300 Kinematic Mount 
-
VTS300 with Ball Joint Foot 
Dimensions
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VTS300 
Ordering Information
Ordering Example
| VTS300 | -050 | -TTM | -01S | -NC | -BM23 | -1 |
Ordering Options
| Series | Travel (mm) | Stage Construction Options | Tabletop | Drive Screw | Limits | Motor | Motor Orientation | Options |
|---|---|---|---|---|---|---|---|---|
| VTS300 | -050 -100 -150 -200 |
/VAC3 /VAC6 STEEL |
-TTM -TTMK |
-01S | -NC -NO |
-BM23 -BM34 -SM -NM |
-1 -2 -3 |
-BRK23 -BRK34 -GRBXXX |
VTS300 Vertical Translation Stage
| Options | Description |
|---|---|
| VTS300-050 | 50 mm travel stage with ground lead screw and limits |
| VTS300-100 | 100 mm travel stage with ground lead screw and limits |
| VTS300-150 | 150 mm travel stage with ground lead screw and limits |
| VTS300-200 | 200 mm travel stage with ground lead screw and limits |
Stage Construction Options
| Options | Description |
|---|---|
| /VAC3 | Vacuum preparation of stage to 10-3 torr |
| /VAC6 | Vacuum preparation of stage to 10-6 torr |
| /STEEL | All steel construction |
Tabletop
| Options | Description |
|---|---|
| -TTM | Metric pattern tabletop |
| -TTMK | Kinematic mount bracket tabletop |
Drive Screw
| Options | Description |
|---|---|
| -01S | 0.1 inch per rev drive screw lead |
Limits
| Options | Description |
|---|---|
| -NC | Normally-closed end of travel limit switches (standard) |
| -NO | Normally-open end of travel limit switches |
Motor
| Options | Description |
|---|---|
| -BM23 | Brushless NEMA 23 servomotor with connectors and 1000-line encoder; requires cable (BM130-MS-E1000H/) |
| -BM34 | Brushless NEMA 34 servomotor with connectors and 1000-line encoder; requires cable (BM250-MS-E1000H/) |
| -SM | Stepping motor with connector and home marker pulse (one per rev); requires cable (101SMB2-HM) |
| -NM | No motor or encoder |
Motor Orientation
| Options | Description |
|---|---|
| -1 | Right-hand direction |
| -2 | Left-hand direction |
| -3 | Rear direction; motor points to rear of the tabletop |
Options
| Options | Description |
|---|---|
| -BRK23 | 24 VDC spring-set motor brake option for NEMA 23 motor |
| -BRK34 | 24 VDC spring-set motor brake option for NEMA 34 motor |
| -GRBXXX | XXX:1 gearbox ratio where XXX is specified as 010, 025, 050, 100 |