Editorial Technical Reference

Suction Cup / Gripper

This page explains how Suction Cup / Gripper is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A mechanical component used for grasping, holding, or manipulating objects through suction or mechanical gripping action.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Suction Cup / Gripper

Definition
A suction cup/gripper is a critical component of a pick-up head assembly in automated systems, responsible for securely attaching to and releasing objects during material handling operations. It functions as the interface between the robotic system and the workpiece, enabling precise positioning and transfer of items in manufacturing and assembly processes. The component is available in various materials, including silicone rubber, polyurethane, nitrile rubber, aluminum alloy, and stainless steel, each selected based on application requirements such as temperature resistance, wear resistance, or oil resistance. Key parameters include suction force (50–500 N), cup diameter (10–200 mm), vacuum level (-60 to -90 kPa), operating temperature (-40 to 85 °C), ingress protection (IP54–IP65 per IEC 60529), material grade (NBR, SI, PU per ASTM D2000), weight (0.05–5 kg), repeatability (±0.05 mm), and air consumption (0.1–2.5 L/min). These values are reference ranges and must be verified for the specific model and application. The suction cup/gripper operates via vacuum suction or mechanical gripping, relying on air pressure differentials or actuator-driven force. It is essential to confirm model-specific values and standards with the legal manufacturer or supplier before procurement. Proper selection requires consideration of workpiece size, weight, surface characteristics, and environmental conditions. Maintenance signals include reduced holding force, visible wear, or leakage. Failure boundaries include exceeding rated pressure, temperature, or force limits. This directory entry is for informational purposes only and does not imply certification or compliance.
Working Principle
Operates through either vacuum suction (creating negative pressure to adhere to smooth surfaces) or mechanical gripping (using fingers or jaws to clamp onto objects). The suction method relies on air pressure differentials, while mechanical grippers use actuators to apply controlled force for secure holding.
Common Materials
Silicone rubber, Polyurethane, Nitrile rubber, Aluminum alloy, Stainless steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Suction Force50–500 NDepends on cup diameter and vacuum level
Cup Diameter10–200 mmSelect based on workpiece size and weight
Vacuum Level-60–-90 kPaHigher vacuum increases holding force
Operating Temperature-40–85 °CSilicone cups withstand higher temperatures
Ingress ProtectionIP54–IP65Higher rating for dusty or wet environmentsIEC 60529
MaterialNBR, SI, PUNBR for oil resistance, SI for high temp, PU for wearASTM D2000
Weight0.05–5 kgAffects end-effector payload
Repeatability±0.05 mmCritical for precision assembly
Air Consumption0.1–2.5 L/minAffects compressor sizing

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
  • Suction Cup Bellows Part
    Creates vacuum seal and provides flexibility for surface adaptation
    Material: Silicone or rubber
  • Vacuum Port Part
    Connection point for vacuum supply line
    Material: Brass or stainless steel
  • Gripper Fingers/Jaws Part
    Mechanical components that physically grasp objects
    Material: Aluminum or steel
  • Mounting Plate Part
    Interface for attaching to the pick-up head assembly
    Material: Aluminum alloy
  • Gripper Actuator Optional
    Drives the fingers closed with controlled force on mechanical-gripper versions.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Suction Cup / Gripper.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Vacuum: 0 to -0.9 bar, Positive: 0 to 6 bar
other spec: Flow Rate: 0-50 L/min, Slurry Concentration: <5% solids by weight
temperature: -20°C to 80°C
Media Compatibility
✓ Flat glass panels ✓ Smooth plastic sheets ✓ Polished metal surfaces
Unsuitable: Porous or highly textured surfaces (e.g., raw wood, fabric)
Sizing Data Required
  • Object weight (kg)
  • Surface area of contact (cm²)
  • Required lifting speed (m/s)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Loss of Vacuum Seal
Cause: Wear or damage to the sealing lip due to abrasive surfaces, misalignment, or contamination, leading to air ingress and reduced gripping force.
Material Fatigue or Tearing
Cause: Repeated flexing, overloading, or exposure to incompatible chemicals or UV light, causing cracks, brittleness, or rupture of the cup material.
Maintenance Indicators
  • Audible hissing or whistling during operation, indicating a vacuum leak.
  • Visual deformation, cracks, or discoloration of the cup material, or inconsistent part pickup/dropping.
Engineering Tips
  • Implement a regular cleaning schedule for both the cup and workpiece surfaces to prevent contamination buildup that compromises the seal.
  • Use cup materials specifically rated for the application's environmental conditions (e.g., oil resistance, temperature range) and ensure proper alignment to avoid sideloading.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ISO 12100:2010 - Safety of machinery ANSI/ASME B46.1-2019 - Surface Texture

Quoted from the published standard.

Manufacturing Precision
  • Bore diameter: +/-0.02mm
  • Surface flatness: 0.1mm per 100mm diameter
Quality Inspection
  • Vacuum leak test at 80% rated vacuum
  • Material hardness test (Shore A scale)

Manufacturers of Suction Cup / Gripper

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Qingdao Jinyuan Rubber Co., Ltd.
Qingdao, Shandong, CN
ISO 9001:2015 IATF 16949:2016 FDA WRAS +3
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What materials are available for the suction cup/gripper?

Available materials include silicone rubber, polyurethane, nitrile rubber, aluminum alloy, and stainless steel. Material selection depends on factors like temperature resistance, wear resistance, and oil resistance. Refer to ASTM D2000 for material grades.

How does the suction force vary?

Suction force ranges from 50 to 500 N, depending on cup diameter and vacuum level. Higher vacuum levels increase holding force, but the exact force must be verified for the specific configuration.

What is the ingress protection rating?

The reference ingress protection is IP54–IP65 per IEC 60529. Higher ratings are suitable for dusty or wet environments. Confirm the actual rating with the manufacturer for your application.

Data Basis

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

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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