Syringe Selection Guide for Programmable Syringe Pumps

Syringe pumps are devices that accurately and precisely dispense small amounts of fluid over time. They work by using a motor to drive a plunger that pushes fluid out of a syringe. The pump's control unit can be programmed to dispense a specific volume of fluid at a specific flow rate over a specified period of time. The motor moves the plunger at a consistent speed, ensuring that the desired volume of fluid is dispensed at the desired rate. Syringe pumps are user-friendly and easy to operate, and many models have the option to reverse the direction of the plunger (withdrawal mode) to flush a line or empty a syringe.

Syringe pumps can be broadly classified into two categories: laboratory syringe pumps and industrial syringe pumps. The main difference between the two is their intended use and environment.

Industrial syringe pumps are designed for use in manufacturing or process control environments and are typically more durable and rugged, able to withstand harsh conditions such as vibration, dust, and extreme temperatures. They are also generally more accurate and precise than laboratory syringe pumps, with higher resolution and repeatability.
Laboratory syringe pumps, on the other hand, are typically used in research and laboratory settings and are designed for more precise, controlled delivery of small volumes of fluids. They may be used in a variety of applications, such as chemical analysis, drug delivery, and sample preparation. They are usually smaller, more portable, and easier to use than industrial syringe pumps. Laboratory syringe pumps may also have additional features such as programmable flow rates and the ability to connect to a computer for data analysis.
Another difference is the size of the syringes that can be used. Industrial syringe pumps are usually able to accommodate larger syringes (e.g., 50 mL or more) while lab syringe pumps are designed for smaller syringes (e.g., less than 50 mL).

The tables below are commonly used syringes and their volume sizes, maximum travel distances, inner diameters and their cross-sectional areas. Many syringe pumps require uses to enter the syringe diameter information, setting the pump's flow rates. Some pumps have this information built into the pump memory and provide users to use as a lookup table. For example dLSP 501S laboratory syringe pump has built-in manufacturers and allows users to select the syringe sizes. Also, users can define the syringe size by themselves. For example, the pump's linear speed is rated 0.6096um/min to 182.88mm/min. Based on the cross-sectional area and the linear speed, the average flow rate thus can be derived as 2.542uL/min to 0.762 mL/min.

Table 1 dLSP 501S Syringe Selection Table

Syringe manufacturers	Syringe volume	Max. Travel Distance (mm)	Inner Diameter (mm)	Cross-sectional Area (mm^2)
Hamilton	0.5 µL	60.01	0.103	0.0083
Hamilton	1 µL	59.73	0.146	0.0167
Hamilton	2 µL	60.01	0.206	0.0333
Hamilton	5 µL	54.11	0.343	0.0924
Hamilton	10 µL	54.13	0.485	0.1847
Hamilton	25 µL	59.9	0.729	0.4174
Hamilton	50 µL	60.01	1.03	0.8332
Hamilton	100 µL	59.98	1.457	1.6672
Hamilton	250 µL	59.96	2.304	4.1694
Popper&sons	250 µL	26.74	3.45	9.3493
SGE	5 µL	54.11	0.343	0.0924
SGE	10 µL	54.13	0.485	0.1847
SGE	25 µL	60.06	0.728	0.4163
SGE	50 µL	60.01	1.03	0.8332
SGE	100 µL	59.98	1.457	1.6672
SGE	250 µL	60.02	2.303	4.1653
Shanghai Gaoge	0.5 µL	63.69	0.1	0.0079
Shanghai Gaoge	1 µL	56.62	0.15	0.0177
Shanghai Gaoge	2 µL	63.69	0.2	0.0314
Shanghai Gaoge	5 µL	51.97	0.35	0.0962
Shanghai Gaoge	10 µL	50.93	0.5	0.1963
Shanghai Gaoge	25 µL	49.74	0.8	0.5026
Shanghai Gaoge	50 µL	52.61	1.1	0.9504
Shanghai Gaoge	100 µL	49.74	1.6	2.0105
Shanghai Gaoge	250 µL	60.17	2.3	4.1549
Unimertrics	10 µL	60.17	0.46	0.1662
Unimertrics	25 µL	59.73	0.73	0.4186
Unimertrics	50 µL	60.01	1.03	0.8332
Unimertrics	100 µL	59.73	1.46	1.6742
Unimertrics	250 µL	60.17	2.3	4.1549

Table 2 dLSP 501L Syringe Selection Table

Syringe manufacturers	Syringe volume	Max. Travel Distance (mm)	Inner Diameter (mm)	Cross-sectional Area (mm^2)
Air-Tite	1000 µL	57.88	4.69	17.2771
Becon Dickinson	1 µL	59.73	0.146	0.0167
Becon Dickinson (G)	500 µL	29.57	4.64	16.909
Becon Dickinson (G)	1000 µL	59.14	4.64	16.909
Hamilton	0.5 µL	60.01	0.103	0.0083
Hamilton	1 µL	59.73	0.146	0.0167
Hamilton	2 µL	60.01	0.206	0.0333
Hamilton	5 µL	54.11	0.343	0.0924
Hamilton	10 µL	54.13	0.485	0.1847
Hamilton	25 µL	59.9	0.729	0.4174
Hamilton	50 µL	60.01	1.03	0.8332
Hamilton	100 µL	59.98	1.457	1.6672
Hamilton	250 µL	59.96	2.304	4.1694
Hamilton	500 µL	60.05	3.256	8.3264
Hamilton	1000 µL	59.96	4.608	16.6778
Popper&sons	250 µL	26.74	3.45	9.3493
Popper&sons	500 µL	53.49	3.45	9.3475
Popper&sons	1000 µL	62.88	4.5	15.9033
SGE	5 µL	54.11	0.343	0.0924
SGE	10 µL	54.13	0.485	0.1847
SGE	50 µL	60.01	1.03	0.8332
SGE	25 µL	60.06	0.728	0.4163
SGE	100 µL	59.98	1.457	1.6672
SGE	250 µL	60.02	2.303	4.1653
SGE	500 µL	60.01	3.257	8.3319
SGE	1000 µL	60.02	4.606	16.6611
Shanghai Gaoge	0.5 µL	63.69	0.1	0.0079
Shanghai Gaoge	1 µL	56.62	0.15	0.0177
Shanghai Gaoge	2 µL	63.69	0.2	0.0314
Shanghai Gaoge	5 µL	51.97	0.35	0.0962
Shanghai Gaoge	10 µL	50.93	0.5	0.1963
Shanghai Gaoge	25 µL	49.74	0.8	0.5026
Shanghai Gaoge	50 µL	52.61	1.1	0.9504
Shanghai Gaoge	100 µL	49.74	1.6	2.0105
Shanghai Gaoge	250 µL	60.17	2.3	4.1549
Shanghai Gaoge	500 µL	60.27	3.25	8.2960
Shanghai Gaoge	1000 µL	59.91	4.61	16.6917
Sherwood Monojet	1000 µL	58.88	4.65	16.9837
Terumo	1000 µL	56.91	4.73	17.5716
Unimertrics	10 µL	59.73	0.46	0.1662
Unimertrics	25 µL	59.73	0.73	0.4186
Unimertrics	50 µL	60.01	1.03	0.8332
Unimertrics	100 µL	59.73	1.46	1.6742
Unimertrics	250 µL	60.17	2.30	4.1549
Unimertrics	500 µL	59.9	3.26	8.3472
Unimertrics	1000 µL	59.91	4.61	16.6917
Unimertrics	1000 µL	57.15	4.72	17.4978

Syringe Pump Flow Rate Calculation

This digital syringe pump (dLSP500) is designed for precision fluid handling laboratory applications. It accepts syringe size from 0.5uL to 60mL. Let's consider the dLSP500 syringe pump to estimate the flow rate range. This pump has a linear translation speed range of 0.0833mm/min to 180mm/min, with a resolution of 0.03255µm/µstep. Table 1, 2, and 3 list commonly used syringe sizes and their inner diameters. The inner diameter of a 5 mL BD plastic syringe is approximately 11.98 mm. Using this information, we can calculate that the flow rate of the syringe pump ranges from 9.389 µL/min to 20.289 mL/min. The flow rates for other syringe sizes can be calculated in a similar manner. In addition, the average pressures for any syringe pump and syringe together can be estimated by dividing the average force applied on the syringe pump and the syringe surface area.

Industrial Syringe Pump Communication Command Examples (Hexagon Codes)

The ASP-SY0825 is a compact OEM industrial syringe pump module designed for precision liquid handling applications. This new syringe pump can communicate through RS-232, RS-485, or CAN interfaces, allowing for multi-pump arrangements of up to 15 pumps in one group. It supports group control and individual addressing, making it versatile for various automation needs. This pump is ideal for tasks such as auto pipetting, sample dilution or mixing, and sample dispensing in analytical instruments. It is available in three volume options: 5 mL, 12.5 mL, and 25 mL. If you have any questions or require more details, please don't hesitate to reach out to our product specialist.

Practical Fluidic Interface Guide for Electric Rotary Valves in Laboratory Automation

The electric rotary or multi-channel switching valve is a stepper motor-driven fluid handling valve designed for automated fluidics applications. This precise rotary valve automates the routing of fluidic volumes, allowing for the handling of aggressive fluids and switching flow directions as needed. For instance, in a multi-channel distribution valve, a common central port connects the stator and rotator, enabling the switching of flow direction between different ports with a rapid response time of less than 120ms for adjacent ports. This switching valve can communicate through RS-232, RS-485, or CAN interfaces, allowing for multi-valve arrangements of up to 15 valves in one group. See Figure 1 for the wiring instruction. It supports group control and individual addressing, making it versatile for various automation needs. The wetted materials in the flow path are PCTFE/Sapphire and can be customized upon request.

Syringe Selection Guide for Programmable Syringe Pumps

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