GE AMX 4 Plus
The GE AMX 4 Plus is an advanced, battery-operated portable X-ray system designed for consistent, full-scale radiographic image quality at the point of care.
The GE AMX 4 Plus is an advanced, battery-operated portable X-ray system designed for consistent, full-scale radiographic image quality at the point of care. Its compact, easy-to-maneuver design allows technologists to obtain diagnostic images in ICUs, CCUs, emergency departments, ORs, pediatric and neonatal units, orthopedic wards, and clinics—without the need to plug in before making exposures. Dual drive motors and oversized casters provide smooth maneuverability, while microprocessor-based operator controls help ensure accurate technique selection and system status feedback. The AMX 4 Plus supports up to 50 high-quality exposures on a single charge and offers a robust manual collimator with built-in SID controls. This system is engineered for reliability, productivity, and repeatable image quality in even the most demanding mobile imaging environments.
Key Features
- Analog portable X-ray system in a compact, maneuverable package
- Up to 50 high-quality exposures per full charge
- Dual-drive motors and oversized casters for easy movement
- Microprocessor-based operator controls and message display
- Ergonomic hand switch controls for prep and exposure
- Compact manual collimator with built-in SID button on collimator face
Technical Specifications
| General | |
|---|---|
| Height | 70 in (177.8 cm) for models 2169360-6, 2236420-6, 2275938-6, -12, -13, -14, -15 |
| Height | 76 in (193 cm) for all other models |
| Width | 25-3/16 in (64 cm) |
| Length | 45-3/8 in (115.3 cm) |
| Weight | 1080 lb (490 kg) |
| Environmental Limits | |
| Operating Temperature | 59–100°F (15–38°C), up to 80% non-condensing humidity |
| Storage Temperature | –40 to +140°F (–40 to +60°C) |
| Maximum Operating Altitude | 8000 ft (2440 m) |
| Movements (tube vertical movement measured at focal spot, arm extended) | |
| Vertical Range | ≥46.5 in |
| Lowest Position | 26.1 in |
| Highest Position | 72.6 in |
| Horizontal movement at focal spot relative to column face | 24 in (61.0 cm) min to 40 in (101.6 cm) max |
| Tube Column Rotation (from horizontal arm latch) | ±270° |
| Tube and Yoke Rotation around Horizontal Arm (from tube port down) | 360° range; detents at ±90° and ±180° |
| Tube Trunnion Rotation (from tube port down) | 120° range; forward 110°, backward 10°; detents at 0° and 90° |
| Collimator Rotation (from front with tube port down) | 180° range; right 90°, left 90°; detents at 0° and 90° |
| Drive Speed | |
| Drive Speed | 264 ft (670.5 cm) per min ±25% |
| Maneuvering Speed | 30–60% of drive speed |
| kVp Accuracy | |
| kVp rise time (10% to 90% max kVp) | ≤1.2 ms |
| kVp fall time (90% max kVp to 20 kV) | ≤2.5 ms |
| Accuracy to selected kVp | ±8% for first 20 ms, ±5% after 20 ms (within bar graph battery indicator range) |
| Collimator Function | |
| Type | Manual |
| Detail | Minimum source-to-skin distance >30 cm via skin spacers at beam exit |
| Detail | Full 17 × 17 in (43 × 43 cm) coverage at 40 in (1.02 m) SID |
| Minimum inherent filtration | 2.0 mm Al equivalent at 100 kVp |
| Collimator Light Field Intensity | Average illumination at 100 cm (39.37 in) from focal spot ≥16 foot-candles (≈170 lux) |
| Generator Performance & Tube | |
| Focal Spot | 0.75 mm (NEMA) |
| Tube | GE X-ray tube model HRT09, 3 in rotating anode |
| Anode Heat Capacity | 275,000 HU |
| Target Angle | 15° |
| Anode Speed | 3000 rpm (low speed) |
| Detail | Closed-loop kVp generator design with microprocessor regulation for constant, accurate kVp across battery conditions |
| Battery Specifications | Nine 12.9 V batteries connected in series (≈116 V at full charge) |
| Battery Capacity (Measured with fully charged, healthy batteries) | |
| Method 1 – Exams | >20 typical exams, where one exam = |
| Method 1 – Exams | Two 70 kVp, 10 mAs exposures |
| Method 1 – Exams | 7 s prep (rotor/filament) |
| Method 1 – Exams | 25 s field light |
| Method 1 – Exams | 5 min driving |
| Method 1 – Exams | 9 min idle |
| Method 2 – X-ray Exposures | ≥165 exposures at 100 kVp, 100 mAs (each with 4 s prep and 30 s idle) |
| Method 3 – Drive Time | ~140 minutes of continuous drive time (may decrease on carpet/ramps) |
| Method 4 – Idle Time | ~23.3 hours of continuous idle (ON, no use) |
| Method 5 – Varied Usage (Capacity Formula) | {(idle time in minutes) × 3} + {(drive time in minutes) × 30} + {(field light time in minutes) × 25} + {(prep time in minutes) × 30} + {(exposure energy*) × 2.17} = 4200 *exposure energy = cumulative {(kVp × mAs) / 1000} |
| Typical pediatric exam with | Two 70 kVp, 0.8 mAs exposures |
| Typical pediatric exam with | 3 s prep |
| Typical pediatric exam with | 15 s field light |
| Typical pediatric exam with | 1 min drive |
| Typical pediatric exam with | 5 min idle |
| Typical pediatric exam with | Each exam uses ≈60.7 “capacity units,” yielding ≈69 exams from a full charge (4200 / 60.7). |
