IP200 Series Pneumatic Pilot Servo Cylinder Positioner

Brand: SOLH by Richge Technology

Product Positioning

     IP200 series launched under SOLH brand of Richge Technology is a pneumatic pilot servo cylinder positioner. It delivers high-precision proportional position control for standard cylinders, linearly converting 0.02~0.1MPa pneumatic control signal into precise displacement of cylinder piston rod. Fully air-driven without power supply, it is an intrinsically safe positioning solution for explosion-prone industrial environments.

Core Technical Specifications

    1. Basic Parameters

     -- Compatible Cylinders: Bore ≥ Ø50mm, stroke 25~300mm (customizable per 1mm increment)

     -- Control Principle: Nozzle-flapper servo mechanism based on force balance theory

     -- Supply Air Pressure (SUP): 0.3~0.7MPa

     -- Input Control Signal (IN): Standard 0.02~0.1MPa pneumatic signal

     -- Ambient & Medium Temperature: -5℃ ~ +60℃ (standard version)

     -- Port Thread: Main port Rc1/4; pressure gauge port Rc1/8

     -- Net Weight: Approx. 700g (based on 100mm stroke model)Control Accuracy Index· Sensitivity: ≤ 0.5% F.S.

     -- Linearity: ≤ ±2% F.S.

     -- Hysteresis: ≤ 1% F.S.

     -- Repeatability: ≤ ±1% F.S.2. 

Force Balance Working Principle

     -- Signal Input: Pneumatic control signal enters port IN and pushes the input diaphragm.

     -- Servo Amplification: Diaphragm displacement changes the clearance against the nozzle to adjust back pressure, driving the internal spool to switch air circuits.

     -- Cylinder Actuation: Pressurized air outputs via OUT1 / OUT2 ports to extend or retract the double-acting cylinder.

     -- Position Feedback: Cylinder stroke motion pulls back the feedback diaphragm through connecting rod & feedback spring to reach force balance with input signal; the spool returns to neutral position to lock the cylinder at target position accurately.

Model Code Definition (IP200-XXX-YY)

     -- IP200: Base series code

     -- XXX: Rated stroke (25 / 50 / 100 / 150 / 200 / 250 / 300mm)

     --YY Optional suffix: No suffix: Standard model with carbon steel feedback spring -T: Equipped with stainless steel feedback spring -XN: Low temperature version (-30°C ~ +60°C) -XZ: High temperature version (-5°C ~ +80°C)

Example: IP200-200-T → 200mm stroke, stainless steel feedback spring.

Port Definition

     -- SUP: Main air supply input (0.3~0.7MPa)

     -- IN: Pneumatic control signal input (0.02~0.1MPa)

     -- OUT1 / OUT2: Dual output ports for double acting cylinder

     -- EX: Exhaust port

     -- Gauge: Dedicated port for pressure gauge installation

Core Product Advantages

     -- High Precision Explosion-Safe Pneumatic Positioning Comparable positioning accuracy of electric servo systems; fully air-operated with no electrical components, intrinsically safe for flammable & explosive working zones.

     -- Compact Integrated All-In-One Structure Integrated unit design for direct mounting onto standard cylinders, simplifying on-site installation and routine maintenance procedures.

     -- Convenient Calibration Design Built-in independent Zero adjustment screw and Span adjustment screw for fast on-site calibration without extra tools.

     -- Multiple Material Options for Corrosion Resistance Feedback spring available in carbon steel or stainless steel variants to adapt to humid, corrosive workshop environments.

     -- Wide Temperature Range Custom Versions Standard, low-temperature and high-temperature optional models to satisfy complex variable temperature industrial conditions.

Typical Application Scenarios

     -- Precision positioning stations: Cutting, press-fitting, coating and automatic material handling equipment

     -- Industrial process control: Valve opening regulation, web tension control and web edge correction systems

     -- Special harsh environments: Explosion-proof, dustproof and waterproof equipment for chemical plants & mining machinery

     -- Pneumatic servo core unit: Serves as the central control component of full pneumatic servo positioning systems

Operation & Installation Guidelines

     -- Air Source Requirement: Supply air must be dry and clean with filtration precision ≤5μm to prevent nozzle blockage and positioning failure.

     -- Calibration Reference: Complete zero and span adjustment under standard supply pressure of 0.5MPa for optimal linear performance.

     -- Mounting Direction: Supports installation at any angle; avoid mounting layout that causes condensed water to accumulate inside the unit’s internal assembly.

One Sentence Summary

     SOLH IP200 force-balance nozzle-flapper pneumatic servo positioner linearly converts 0.02~0.1MPa air signal into precise cylinder displacement, featuring high positioning accuracy, explosion-safe air-only operation, zero/span adjustable calibration and multi-temperature custom options, the ideal proportional positioning control unit for explosion-proof chemical, mining and precision automation equipment.