Stroke Length Adjuster / Speed Controller for Dosing Pumps

Product Specifications

Technical details and manufacturing context for Stroke Length Adjuster / Speed Controller

Definition

The Stroke Length Adjuster / Speed Controller is a control component used in dosing pumps and feeders. It combines two adjustment functions: stroke length (the distance traveled by the pump piston or diaphragm) and operational speed (the frequency of strokes per unit time). By adjusting these parameters, the component enables precise control of volumetric output, which is critical for accurate dosing of liquids, chemicals, slurries, or granular materials in industrial processes. This dual-parameter control helps maintain consistent flow rates, mixture ratios, and process stability. The component is typically integrated into the pump or feeder assembly and can be operated manually or via automated control signals. It is suitable for applications requiring adjustable dosing rates, such as chemical injection, water treatment, and material feeding. The component is available in configurations with stroke length ranges up to 100 mm and speed ranges up to 150 rpm, with adjustment accuracies of ±0.5% for stroke and ±1% for speed. It operates within a pressure range of 1.0–1.6 MPa and a temperature range of -20 to 80 °C. The standard supply voltage is 24 V DC (±10%), and it accepts a 4–20 mA analog control signal for remote adjustment. Enclosure ratings range from IP54 to IP65 (per IEC 60529), and the body is typically made of 316L stainless steel (per ASTM A240). The weight varies from 2.5 to 5.0 kg depending on configuration. Materials used include stainless steel, aluminum alloy, and engineering plastics such as POM and PTFE. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.

Working Principle

The component adjusts stroke length and speed through mechanical linkages, cam systems, or electronic servo mechanisms. Stroke length changes the displacement volume per cycle, while speed changes the cycle frequency. These adjustments work together: stroke length determines 'how much' per stroke, and speed determines 'how often' strokes occur. The controller interprets input signals (manual, analog, or digital) to position actuators that alter the pump's mechanical limits or motor speed, thereby defining the final output rate (Volume = Stroke Volume × Strokes per Minute).

Common Materials

Stainless Steel (for corrosion resistance), Aluminum Alloy (for lightweight housings), Engineering Plastics (e.g., POM, PTFE for seals and bushings)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Stroke Length Range	0–100 mm	Adjustable to control flow rate
Speed Range	0–150 rpm	Adjustable to control dosing frequency
Stroke Adjustment Accuracy	±0.5 %	Ensures precise dosing
Speed Adjustment Accuracy	±1 %	Maintains consistent flow
Operating Temperature	-20–80 °C	Outside range may affect seals
Supply Voltage	24 ±10% V DC	Standard industrial control voltage
Control Signal	4–20 mA	Analog input for remote control
Enclosure Rating	IP54–IP65	Protects against dust and waterIEC 60529
Body Material	316L	Corrosion-resistant stainless steelASTM A240
Weight	2.5–5.0 kg	Depends on configuration

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Adjustment Mechanism (e.g., Lead Screw or Cam) Part
Converts rotational input from the control interface into linear displacement to physically set the stroke length limit.

Material: Stainless Steel or Hardened Steel
Speed Control Module (e.g., VFD or Governor)
Regulates the electrical frequency to the drive motor or the mechanical input speed to control the stroke cycle rate.

Material: Electronic Components (PCB, semiconductors) or Alloy Steel
Position Sensor (e.g., Potentiometer or Encoder)
Measures and provides feedback on the current stroke length setting to the control system for accuracy and closed-loop operation.

Material: Plastic, Copper, Ceramic
Housing / Mounting Bracket Part
Encloses and protects internal components and provides a secure mounting point to the dosing pump or feeder frame.

Material: Aluminum Alloy or Coated Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Stroke Length Adjuster / Speed Controller.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Dosing Pump or Feeder

View system integration details

Manufacturers of Stroke Length Adjuster / Speed Controller

Manufacturer profiles associated with Stroke Length Adjuster / Speed Controller.

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Frequently Asked Questions

What is the function of the Stroke Length Adjuster / Speed Controller?

It regulates both the stroke length and operational speed of a dosing pump or feeder, allowing precise control of the delivery rate of fluids or materials.

What are the typical adjustment ranges?

The stroke length range is 0–100 mm, and the speed range is 0–150 rpm. Adjustment accuracy is ±0.5% for stroke and ±1% for speed.

What are the operating limits?

Operating pressure is 1.0–1.6 MPa, and temperature range is -20 to 80 °C. Supply voltage is 24 V DC (±10%), and control signal is 4–20 mA.

What materials are used?

Common materials include stainless steel (e.g., 316L), aluminum alloy, and engineering plastics like POM and PTFE. Verify material suitability for your application.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	0 to 10 bar
flow rate:	0.1 to 100 L/h
temperature:	-20°C to 80°C
slurry concentration:	Up to 60% solids by weight

Stroke Length Adjuster / Speed Controller

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards