Robotic Gripper Finger

A Robotic Gripper Finger must deliver predictable and repeatable force across varied part geometries without overloading contact surfaces. This is achieved by incorporating calibrated force vectors and compliant-tip geometries that maintain constant normal pressure. The Robotic Gripper Finger accommodates variations in part stiffness, mass distribution, and surface texture, ensuring secure handling during high-speed or orientation-sensitive operations. This force control is critical in avoiding part slippage, microfractures, or excessive stress concentrations. 

Material

Aluminum 7075-T6, Hardened Steel 4140, Stainless Steel 17-4PH

Dimensional Tolerances

Gripping Features – ±0.02 mm; Mounting Interface – ±0.01 mm

Gripping Surface Geometry

Textured – Diamond knurl (Ra 3–5 µm); Smooth – Ra ≤0.4 µm (for delicate parts); Custom Profiles – V-groove, serrated, or rubber-coated

Flatness/Parallelism

Mounting Face – ≤0.01 mm/100 mm; Gripping Face – ≤0.02 mm

Surface Finish

Gripping Zone – Ra 0.4–5.0 µm (adjustable); Non-Contact – Ra ≤1.6 µm

Product Description

Every Robotic Gripper Finger is engineered with selective compliance zones that allow micro-level deflection along minor axes while retaining high stiffness in the primary gripping direction. This controlled compliance is implemented through integrated flexure elements or elastomeric couplers, enabling the Robotic Gripper Finger to conform to unstructured or variable part profiles without losing grip integrity. Such axial compliance helps reduce contact stress, accommodate tolerance stack-ups, and preserve repeatability over millions of cycles. 

Mounting Holes

Thread Size – M3–M8; Position Tolerance – ±0.01 mm; Pattern – Custom or DIN/ISO standard

Hardness/Wear Resistance

Steel Variants – 50–55 HRC; Aluminum – Hard Anodized (HV ≥400)

Burr-Free Requirement

Laser-Deburred Edges (ISO 13715 compliant); Edge Radius – 0.1–0.3 mm

Protective Coating

Anodizing (Type III, 50 µm), Teflon-Impregnated (low friction), Rubber Overmold

Certification Standards

ISO 9409-1 (Robot Mounting Interfaces), ISO 9001:2015, RoHS/REACH Compliant

Technical Advantages

Dimensional stability is a critical performance parameter for any Robotic Gripper Finger deployed in thermally dynamic or high-cycle environments. Materials such as carbon-fiber composites, anodized 7075 aluminum, and thermally stabilized polymers are used to maintain consistent geometry despite temperature shifts or high actuation frequency. The Robotic Gripper Finger resists thermal creep, minimizes expansion-induced drift, and ensures consistent centerline force application even under accelerated duty cycles. 

The Robotic Gripper Finger is configured with interchangeable contact surfaces to suit diverse part materials, textures, and cleanliness requirements. Surface treatments range from high-friction nitrile for oily metallic components to soft, non-marring silicones for optical or medical-grade parts. Each Robotic Gripper Finger is designed with tribological optimization to ensure maximum contact area without inducing surface damage, and contact pad geometries are selected based on real-world testing under variable payload conditions. 

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Industry Applications

Automated Electronics Assembly

Handles PCB components, connectors, and microdevices using precision force control and anti-static materials for damage-free manipulation. 

CNC Machine Tending

Loads and unloads raw stock or finished parts, maintaining positional accuracy under coolant exposure and high spindle proximity. 

Pharmaceutical Packaging

Grips blister packs, vials, and syringes with sterilizable fingers designed for ISO Class 5 cleanroom environments. 

Battery and Cell Manufacturing

Transfers pouch cells and cylindrical units with equalized pressure to prevent deformation and preserve terminal alignment. 

Plastic Injection Molding Ejection Handling

Extracts molded parts directly from tooling using heat-resistant fingers optimized for dimensional stability near mold temperatures. 

Automated Optical Inspection Loading

Positions optical components with sub-millimeter precision using non-abrasive, low-particulate gripping surfaces for imaging system compatibility. 

 

Kinematic Compatibility with Industrial Gripper Systems

Integration efficiency is critical, and each Robotic Gripper Finger is designed for seamless attachment to parallel, angular, or rotary grippers via ISO 9409-1 interfaces or custom-adaptive mounts. The Robotic Gripper Finger incorporates precision dowel locators and modular backing plates to maintain alignment integrity during high-torque operations. This ensures fast tool changes, reliable positioning, and reduction in system integration downtime across robotic arms from multiple OEMs. 

 When deployed in harsh manufacturing environments, the Robotic Gripper Finger must resist chemical degradation and particulate abrasion. Sealed-body variants are constructed from PEEK, stainless steel, or chemically inert composites to prevent ingress of coolants, cutting fluids, or sterilizing agents. The Robotic Gripper Finger maintains surface integrity and actuation consistency across IP-rated or cleanroom-classified installations, supporting long-term deployment in CNC cells, food processing, or pharmaceutical automation. 

 

Robotic Gripper Finger

Having Doubts? Our FAQ

Check all our Frequently Asked Question

How does Frigate ensure dimensional consistency in Robotic Gripper Fingers for multi-axis robotic arms?

Frigate machines all Robotic Gripper Fingers using 5-axis CNC systems with sub-15 micron tolerance controls. This ensures alignment across mating surfaces and consistent finger geometry. Every part undergoes coordinate measurement (CMM) validation before dispatch. This reduces cumulative kinematic errors in robotic systems with complex toolpaths. 

What surface materials does Frigate use to handle components with varying coefficients of friction?

Frigate offers contact surfaces made from nitrile rubber, urethane, silicone, and PTFE-based materials. Each surface is selected based on friction behavior and part sensitivity. High-friction materials are used for oily or coated parts, while low-friction options protect delicate finishes. Swappable pad designs enable field-level surface optimization. 

 

How does Frigate’s Robotic Gripper Finger design support cleanroom and sterile environments?

Frigate manufactures gripper fingers using PEEK, PPSU, and anodized aluminum with minimal particulate emission. Design geometry avoids dead zones where contaminants could accumulate. Cleanroom-compatible variants comply with ISO Class 5 requirements. Finger joints are sealed to withstand repeated sterilization cycles without degrading mechanical performance. 

Can Frigate’s Robotic Gripper Fingers manage sudden changes in load or motion direction?

Yes, Frigate integrates viscoelastic dampers and compliant joints into the finger structure. These features absorb inertial forces during rapid robot movements or payload shifts. Load transitions are managed without transmitting shock to the gripped part. This improves part stability and reduces misalignment under high dynamic conditions. 

How does Frigate support customization of Robotic Gripper Fingers for part-specific applications?

Frigate uses a modular design system allowing quick reconfiguration of finger length, tip profile, and actuation geometry. Customers can request geometry based on CAD models of their parts. Custom configurations are validated using FEA and motion simulation. This ensures application-specific performance without full redesign or extended lead time. 

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LOCATIONS

Global Sales Office

818, Preakness lane, Coppell, Texas, USA – 75019

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

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