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R7B7
R7B7 (R7 Sleeve B7 Bob)
R7B7 being attached to M3600 Automatic Rheometer
B7 Bob
M3600 Measurement Range Graph
The R7 Sleeve and B7 Bob combination (R7B7) enhances low viscosity measurements for the M3600 Automatic Rheometer.
A bob and sleeve for low viscosity measurements
Combine the R7 Sleeve and the B7 Bob to make the R7B7, which makes low-viscosity measurements 4 times better, to about ±0.1 cP at 300 RPM.
The R7B7 setup is available for the M3600 Automatic Rheometer.
Parts included in an R7B7 purchase
Three leg extensions are included with purchase of the R7B7; they make the machine tall enough to fit the R7B7 and its sample cup.
A large sample cup is also included with each purcahse.
| Part number | Part name | Quantity |
|---|---|---|
| MACH3600071 | B7 bob stainless steel | 1 |
| MACH3600072 | R7 sleeve stainless steel | 1 |
| MACH3500007 | 350 mL sample cup thin wall stainless steel | 1 |
| MACH3600073 | Leg extension | 3 |
Heater cup
If temperature control is desired for a test, an optional heater cup is available in 120V or 240V.
The heater cup for the R7B7 is larger than the standard heater cup to accomodate the larger rotor, bob, and sample cup.
Click here to see the standard M3610 heater cup.
| Part number | Part name |
|---|---|
| HEAT3500AS1 | 120V big heater cup for 350mL sample cup |
| HEAT3500AS2 | 240V big heater cup for 350mL sample cup |
| Sample cup volume: 350 mL |
| Sample cup maximum volume: 600 mL |
| Material: stainless steel |
| Rotor Radius: 2.9108 cm |
| Bob Radius and Height: 2.7264 x 7.6 cm |
| Shear Gap in Annulus: 0.1844 cm |
| Radii Ratio, R1/R0: 0.9367 |
| Maximum Temperature: 212°F (100°C) |
| Minimum Temperature: Ambient (20°F or -6°C with Chiller) |
| Shear Stress Range (dynes/cm2: 1~2,000 (standard) |
Shear Rate Range
| Shear Rate Constant k3, sec-1 per RPM: | 1.7023 | |
| Shear Rate Range, sec-1 Y = k3N: | ||
| N = 0.01 RPM | 0.017 | |
| N = 0.1 RPM | 0.17 | |
| N = 1 RPM | 1.7 | |
| N = 10 RPM | 17 | |
| N = 100 RPM | 170 | |
| N = 600 RPM | 1021 (maximum 511 recommended) |
Optional heater cup specifications for the R7B7
| Volts: 120 or 240 |
| Maximum Temperature: 212°F (100°C) |
- A B7 bob and an R7 sleeve (R7B7) that enhances low-viscosity measurements.