RONYI vacuum pick-up screw feeders (automation models, also called screw presenters) use rotary-disc, cross-shaped separation to deliver bulk screws one at a time, in a fixed orientation, to the pick-up point, where the tightening spindle of an automatic screw tightening machine or robot picks them up with a vacuum nozzle. Four models cover M0.8–M6.0 screws with thread lengths up to 30mm and hoppers of 80–900CC; the drum, disc and vibration motors are digitally adjustable, with counters and automatic jam clearing.
Vacuum Pick-Up Screw Feeders for Automatic Screw Tightening Machines
A vacuum pick-up screw feeder aligns bulk screws into single screws in a fixed orientation and delivers them to the pick-up point, where the tightening spindle on an automatic screw tightening machine or robot picks them up one by one with a vacuum nozzle. Smooth feeding directly determines the actual throughput of an automated tightening station: once screws jam or the feeder runs empty, even the most precise torque control downstream is of no use.
The RONYI automation models (suffix J) use rotary-disc separation: after vibration and a rotating drum align the screws onto the rail, a cross-shaped separator delivers them one at a time to a fixed position. Because the pick-up point never moves, the nozzle picks from the same spot every time, and screws are less likely to slip, jam or stick together. The rail is wire-cut along its full length for uniform clearance and tight tolerances, and key parts are CNC-machined.
The four models differ by screw size and capacity: the RY-328J mini model handles small M0.8~M2.0 screws (80CC), the RY-528J mid-size model covers M0.8~M5.0 (220CC), and the RY-728J large and RY-190J high-capacity models handle M2.0~M6.0 with thread lengths up to 25mm and 30mm and hoppers of 600CC and 900CC, suiting larger screws or lines that want longer refill intervals.
The drum, disc and vibration motors are digitally adjustable, with individual and total counters; all three drives use brushless motors. The control board is enclosed to prevent short circuits from stray screws. On a jam the unit automatically reverses and runs forward again to clear it; if the jam cannot be cleared, it cuts power and raises an alarm.
Four Sizes Available
RY-328J Mini
M0.8~M2.0 | thread ≦8mm | 80CC
RY-528J Mid-size
M0.8~M5.0 | thread ≦12mm | 220CC
RY-728J Large
M2.0~M6.0 | thread ≦25mm | 600CC
RY-190J High-capacity
M2.0~M6.0 | thread ≦30mm | 900CC
Dimensions
RY-328J L160 × W82 × H118 mm
RY-528J L182 × W124 × H145 mm
RY-728J L262.4 × W162.5 × H177.6 mm
RY-190J L295.2 × W190 × H120 mm
Models and Specifications
| Item | RY-328J | RY-528J | RY-728J | RY-190J |
|---|---|---|---|---|
| Model type | Mini | Mid-size | Large | High-capacity |
| Applicable screw range | M0.8~M2.0 | M0.8~M5.0 | M2.0~M6.0 | M2.0~M6.0 |
| Thread length (mm) | ≦8 | ≦12 | ≦25 | ≦30 |
| Screw capacity (CC) | 80 | 220 | 600 | 900 |
| Dimensions (mm) | L160 × W82 × H118 | L182 × W124 × H145 | L262.4 × W162.5 × H177.6 | L295.2 × W190 × H120 |
| Net weight (kg) | 1.53 | 3.1 | 5 | 7 |
| Power input | AC100~240V (50/60Hz) | |||
| Power output | DC12V 2.0A | |||
| Overload protection | Reverses on overload, then resumes forward | |||
| Counter | Individual and total count | |||
| Included accessories | L-shaped hex key ×1, power adapter ×1 set, rail jig plates ×1 set, operation manual | |||
Highlighted rows differ between models; values shared by all models are merged into one cell.
Typical Applications
Feeding automatic screw tightening machines and modules
The pick-up point is fixed and screws are presented one at a time, so the vacuum nozzle on the tightening spindle picks from the same coordinates every time, ideal for tightening modules on XY tables, SCARA or six-axis robots.
Micro screws in precision electronics
The RY-328J is designed for small M0.8~M2.0 screws with thread lengths up to 8mm, suiting micro screws in 3C assembly such as phones, wearables and camera modules.
Larger screws and long continuous runs
The RY-728J and RY-190J handle M2.0~M6.0 screws with thread lengths up to 25mm / 30mm and hoppers of 600CC / 900CC, extending the refill interval; add a screw refill hopper for even longer runs.
Frequently Asked Questions
How do I choose among the four models?
Start with screw size, then volume. For small M0.8~M2.0 screws with thread lengths up to 8mm, choose the RY-328J (80CC); for M0.8~M5.0 up to 12mm, the RY-528J (220CC); for larger M2.0~M6.0 screws, the RY-728J (thread ≦25mm, 600CC), or the RY-190J (900CC) for longer threads (≦30mm) or a larger load. Send us your screw specs or drawing and we can help confirm the fit.
What is the difference between the vacuum pick-up (automation) and manual pick-up models?
Both use rotary-disc, cross-shaped separation with single-screw output at a fixed position; the difference is who picks the screw. Vacuum pick-up models (suffix J) serve automatic screw tightening machines or robots, where the tightening spindle picks screws with a vacuum nozzle at fixed coordinates. Manual pick-up models (suffix H) serve manual stations, where operators pick screws with the bit of an electric screwdriver. Choose J for automated stations and H for manual tightening.
What happens when screws jam?
The control board has overload protection: on a jam it automatically reverses and then runs forward to clear it and resume feeding; if the jam cannot be cleared, it cuts power and raises an alarm to protect the motors and mechanism. The control board is also enclosed to prevent short circuits from stray screws.
What are the power requirements and included accessories?
Power input is AC100~240V (50/60Hz), converted by the included adapter to DC12V 2.0A, so standard factory power works. Each unit comes with an L-shaped hex key, power adapter, rail jig plates and an operation manual.
Is a screw feeder the same as a screw presenter or screw arranging machine?
Yes, they are the same type of equipment under different names; it is also called an automatic screw feeder or screw dispenser. All of them sort loose screws into single pieces in a fixed orientation at the pick-up point, where an electric screwdriver or the tightening spindle of an automatic screw tightening machine picks them up.