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Tolomatic, TOL-O-MATIC
RSA/GSA Rod-style Electric Actuators

RSA/GSA Rod-style Electric Actuators

Product catalog summary

Overview of RSA & GSA Electric Rod-Style Actuators
The RSA and GSA electric rod-style actuators are designed for flexibility and customization. The RSA is a basic screw-driven actuator, while the GSA offers additional guidance and support for loads. Both models are customizable with various stroke lengths and can be shipped within five days. They support multiple motor mounting options and are compatible with brushless servo and stepper motors, or users can supply their own motor through the 'Your Motor Here' program. The actuators feature three drive screw technologies and multiple mounting and rod end options, backed by over 50 years of experience and a satisfaction guarantee.

Specifications
The actuators come in different models with varying thrust capacities and speeds. The RSA can handle thrusts up to 7,350 lbf and speeds up to 123 in/sec, with stroke lengths up to 60 inches. The GSA offers thrusts up to 2,670 lbf with similar speed capabilities. Screw/nut types include solid, ball, and roller options, each offering different performance characteristics.

Applications
These actuators are suitable for a wide range of applications, including animation, assembly machinery, automotive, clamping, conveyors, hydraulic replacement, machine tools, medical equipment, packaging, and robotics. They are designed to replace pneumatic and hydraulic systems, offering a more efficient and flexible solution.

Features and Options
The RSA features include solid nuts for quiet performance, ball nuts for efficiency, and roller nuts for high thrust and life ratings. The design prevents contaminants from entering the housing, and the steel thrust tube supports high force capabilities. The GSA includes a guided rod design for applications requiring load guidance and support, with options for oversized guide rods and corrosion-resistant materials. Both models offer various mounting options, motor orientations, and ingress protection kits.

Performance and Life Expectancy
The actuators are designed for maximum durability, with features like engineered resin bearings for continuous support and high thrust bearing assemblies to eliminate runout. The life expectancy of the ball and roller screws is expressed in terms of linear travel distance, with graphs provided for estimation purposes. Proper lubrication and maintenance are essential for achieving the expected life span.

Screw/Nut Specifications
The document outlines various screw/nut types including solid nut (SN), bronze nut (BZ), ball nut (BN), and low-backlash ball nut (BnL). It highlights the importance of selecting the appropriate nut type based on dynamic load ratings and thrust limitations. Specifications are provided in both US standard and metric units.

Actuator Specifications
The document details the weight, maximum stroke, and temperature range for different actuator sizes (12, 16, 24, 32, etc.). It emphasizes the need for considering heat generation, side loading, and motor support in specific applications.

Performance Metrics
Performance data includes maximum load weight versus stroke length for different bearing types and shaft sizes. Guidelines are provided for calculating adjusted load weight and stroke length to ensure accurate performance evaluation.

Recommendations
The document advises against impact loading and suggests using motor brakes for vertically positioned actuators with certain nut types to prevent load backdriving. It also recommends contacting Tolomatic for applications requiring higher accuracy or lower backlash.

Key Tables and Graphs
The document includes tables with detailed specifications for each screw/nut type and actuator size, as well as graphs illustrating maximum load weight versus stroke length and guide rod deflection.

Procedures
The document details a step-by-step process for selecting the right actuator, including establishing a motion profile, selecting actuator type and size, verifying critical speed and axial buckling strength, and calculating lubrication intervals. It also covers temperature considerations and torque requirements.

Mounting Options
Various mounting options are described, including front flange, mounting plates, foot mount, clevis mount, eye mount, and back flange mount. The document also lists rod end options such as clevis, spherical rod eye, and externally threaded rod end.

Standards and Recommendations
The document recommends using the highest load and force numbers for calculations if they change during the cycle. It also advises on the selection of motors and controllers based on torque requirements and provides guidelines for selecting sensors and motor-actuator configurations.

Additional Information
The document includes part numbers for ordering replacement kits and service parts, and provides contact information for customer service and technical support. It highlights the availability of 3D models and 2D drawings online, and mentions other Tolomatic products such as power transmission products and pneumatic products.

Catalog excerpts

RSA/RSM & GSA / GSM Electric Rod-Style ActuatorS LINEAR SOLUTIONS MADE EASY LINEAR SOLUTIONS MADE EASY

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RSA & GSA Electric Rod-Style Actuator What ARE the RSA & the GSA? Flexibility defines the RSA and the GSA. Need a basic electric screw-driven rod-style actuator? Choose the RSA. Need a rod style actuator that provides guidance and support for the load? Choose the GSA. Every actuator is built-to-order in the stroke length you specify, shipped in 5 days or less. Motors can be mounted inline or reverse parallel to shorten the actuator. Tolomatic offers brushless servo and stepper motors or supply your own motor and take advantage of our “Your Motor Here” (YMH) program. Choose from 3 drive screw...

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RSA & GSA Electric Rod-Style Actuator Applications Gating, Sorting Press Fitting System CONTENTS What is RSA & GSA . . . . . . R/GSA_2 Rod-Style Actuators . . . . . . R/GSA_2 Applications . . . . . . . . . . . . . R/GSA_3 RSA Features . . . . . . . . . R/GSA_4-5 GSA Features . . . . . . . . . R/GSA_6-7 Specifications Storage & Retrieval Critical Speed . . . . . . . . . R/GSA_8-9 Life Capacities . . . . . . . . . R/GSA_10 RSA Screw/Nut . . . . . . . . R/GSA_13 RSM Screw/Nut . . . . . . . . R/GSA_14 Applying, Dispensing GSA Screw/Nut . . . . . R/GSA_15-16 GSM Screw/Nut . . . . . R/GSA_17-18 Actuator...

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RSA rod-STYLE Actuator Endurance Technology features are designed for maximum durability to provide extended service life. The RSA rod screw actuator is ideal for medium to high thrust applications of guided loads. The compact design and cylinder style operation make this solution ideal for applications that were historically solved with pneumatic or hydraulic power. Many mounting options are available allowing the actuator to be installed in numerous applications. Built-to-order in stroke lengths up to 60 inches with MULTIPLE SCREW TECHNOLOGIES your choice of screw technology. You can choose:...

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… MAXIMUM DURABILITY YOUR MOTOR HERE • Specify the device to be installed and actuator ships with proper mounting hardware • Specify and ship your device to Tolomatic for factory installation • Motor or gearbox supplied and installed by Tolomatic • Inline option directly couples the driving shaft and is typically a one-piece housing construction for optimum alignment and support of the motor • Reverse-parallel option minimizes the overall length and offers a belt reduction drive with a 1:1 or 2:1 ratio High thrust BEARING • Unique high thrust bearing assembly design eliminates runout...

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GSA Guided Rod-Style Actuator Endurance Technology features are designed for maximum durability to provide extended service life. The GSA guided screw actuator is ideal for medium to high thrust applications. The selfcontained guided rod design and cylinder slide style operation make this solution ideal for applications requiring guidance and support of the load. A robust, wide tooling plate allows easy mounting of the required end effectors for many applications. Built-to-order in stroke lengths up to 36 inches with your choice of screw technology. Lightweight aluminum design • Black anodized...

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… MAXIMUM DURABILITY YOUR MOTOR HERE • Specify the device to be installed and actuator ships with proper mounting hardware • Specify and ship your device to Tolomatic for factory installation • Motor or gearbox supplied and installed by Tolomatic • Inline option directly couples the driving shafts and is typically a one-piece housing construction for optimum alignment and support of the motor • Reverse-parallel option minimizes the overall length and offers a 1:1 or 2:1 belt ratio SCREW SUPPORT BEARINGS • Unique high thrust bearing assembly design eliminates runout and isolates the linear...

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RSA & GSA Electric Rod-Style Actuator PERFORMANCE PV LIMITS ALL ACME SCREW/NUT CRITICAL SPEED CAPACITIES STROKE (mm) SPEED (mm/sec) SPEED (in/sec) SPEED (mm/sec) SIZE LINE COLOR SCREW CODE SPEED (in/sec) SPEED (mm/sec) PV LIMITS: Any material which carries a sliding load is limited by heat buildup. The factors that affect heat generation rate in an application are the pressure on the nut in pounds per square inch and the surface velocity in feet per minute. The product of these factors provides a measure of the severity of an application. Maximum Stroke 18 GSA(M) Size 12 Maximum Stroke 18 RSA(M)...

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RSA & GSA Electric Rod-Style Actuator PERFORMANCE ALL BALL & ROLLER SCREW/NUT CRITICAL SPEED CAPACITIES 0 SPEED (mm/sec) SPEED (in/sec) SIZE LINE COLOR SCREW CODE SIZE LINE COLOR SCREW CODE Maximum Stroke 18 12 GSA(M) Size 18 Maximum Stroke RSA(M) Size 12,16 0 SCREW CODE DESCRIPTION BN Ball Nut RN Roller Nut

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RSA & GSA Electric Rod-Style Actuator SPECIFICATIONS ALL BALL & ROLLER SCREW LIFE GRAPHS SIZE LINE COLOR SCREW CODE * Maximum thrust reflects 90% reliability for 1 million linear inches of travel. **Life indicates theoretical maximum life of screw only, under ideal conditions and does not indicate expected life of actuator. NOTE: The L10 expected life of a ball and roller screw linear actuator is expressed as the linear travel distance that 90% of properly maintained ball and roller screws manufactured are expected to meet or exceed. This is not a guarantee and this graph should be used for estimation...

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RSA & GSA Electric Rod-Style Actuator SPECIFICATIONS ALL SCREW BUCKLING LOAD SIZE: Maximum Stroke 18 RSA(M) Size 12,16 Maximum Stroke 18 12 GSA(M) Size 64 SIZE LINE COLOR SCREW CODE SIZE LINE COLOR SCREW CODE

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RSA Electric Rod-Stvle Actuator SPEED vs THRUST, ROLLER SCREW/NUT VELOCITY (mm/sec) Re-lubricate with Tolomatic Grease (QUANTITY: RSA24:3.0 g; RSA32:5.0 g) into the grease zerk tamination sensitive applications replace grease zerk with plug. tsL = Basic Lubrication Interval (hours) VRMS = RMS Velocity (in/sec) KT = Thrust Correction Factor Kco = Screw Static Load Factor TPEAK = Actuator Peak Thrust Rating TMAX =Maximum Cycle Thrust ti_ = Lubrication Interval (hours)

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RSA/GSA Rod-style Electric Actuators

RSA/GSA Rod-style Electric Actuators

Catalog excerpts

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