Stirrers and shakers · Rotary mixers
JOANLAB roller mixer · RM series
RM-6 · 6 rollers · no displayRM-6Pro · 6 rollers · high-low axisRM-6H · 6 rollers · horizontal axisRM-8Pro · 8 rollers · high-low axisRM-8H · 8 rollers · horizontal axisRM-4Max · 4 rollers · 1 L bottles
Roller mixers with 280 mm rollers and 20 to 80 rpm for tubes lying flat; the RM-4Max takes two one-liter bottles instead.
- Speed adjustable from 20 to 80 rpm
- Four, six or eight rollers 280 mm long
- Timer from 1 min to 23 h 59 min, except on the RM-6
- The RM-4Max mixes two 1 L bottles, up to 2 kg
Configurations, certifications, power supply, accessories and availability are confirmed in the quote.
Specifications
Summary datasheet
| Capacity | Tubes from Ø6 to 36 mm; the RM-4Max takes vessels from Ø45 to 100 mm, two 1 L bottles or 2 kg |
| Speed | 20-80 rpm, adjustable |
| Number of rollers | 6 (RM-6, RM-6Pro and RM-6H), 8 (RM-8Pro and RM-8H) and 4 (RM-4Max) |
| Roller length | 280 mm |
| Accepted tube diameter | Ø6-34 mm on the RM-6 and Ø10-36 mm on the rest, according to the 2026 edition of the catalog; the previous edition gave Ø6-34 mm for those five |
| Roller layout | Horizontal axis on the RM-6H, the RM-8H and the RM-4Max; for the other three the catalog does not state it |
| Motor | Brushed on the RM-6; brushless on the rest |
| Indicator | LCD display, except on the RM-6 |
| Timer | 1 min to 23 h 59 min; the RM-6 does not include one |
| Power | 25 W |
| Power supply | AC 100-240 V, 50/60 Hz |
| Operating conditions | 5-40 °C and 80% relative humidity, so the manufacturer does not cover use in a cold room |
| Dimensions | 440 × 255 × 105 mm (RM-6, RM-6Pro, RM-6H and RM-4Max); 430 × 320 × 100 mm (RM-8Pro and RM-8H) |
| Shipping package | 52 × 31 × 15 cm and 3 kg (RM-6, RM-6Pro and RM-6H); 51 × 38 × 18 cm and 4.4 kg (RM-8Pro, RM-8H and RM-4Max) |
| Availability | Import to order / to be confirmed |
Six or eight rollers, and the H axis
All of them roll at 20 to 80 rpm on 280 mm rollers. The RM-6 is the entry: brush motor, knob and no timer. The Pro and H units step up to a brushless motor, an LCD and a 23 h 59 min timer; the H versions mount the horizontal axis.
The 4Max is for bottles
It spreads its four rollers 68 mm apart to take vessels of Ø45 to 100 mm —two 1 L bottles or 2 kg—, where the rest of the family rolls tubes of Ø6 to 36 mm.
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