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Kollmorgen TTR-5302-107-A-18-T

Product Overview

TTR-5302-107-A-18-T is two-stage telescopic high-load linear actuator under Kollmorgen TTR product line. Model breakdown: TTR = telescopic double-stage linear actuator series; 5302 = 53mm cross-section frame size medium-load mechanical core; 107 = fixed effective total travel stroke of 107 mm; A = AKM series inline servo motor mounting flange; 18 = 18mm single-start precision ball screw lead; T = full heavy-duty reinforced IP65 sealing package with external pre-wired limit switch harness, extended high-temperature lubrication specification.
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Detailed content

Technical & Performance Specifications

  • Compatible Servo Motor: AKM3 / AKM4 frame synchronous permanent magnet servo motors
  • Total Effective Telescopic Travel Stroke: 107 mm fixed factory stroke
  • Ball Screw Lead Value: 18 mm single-start preloaded double-nut ball screw
  • Continuous Rated Linear Thrust: 2200 N
  • Peak Overload Thrust: 6600 N (300% continuous rating, sustainable 5 seconds maximum)
  • Maximum Linear Travel Speed: 1.5 m/s
  • Linear Position Repeatability: ±0.0025 mm
  • Full-Stroke Absolute Position Accuracy: ±0.020 mm
  • Mechanical Backlash: ≤0.001 mm double preloaded nut assembly
  • Linear Guide Configuration: Dual heavy-duty recirculating ball guide rails with wide carriage slide block
  • Carriage Dynamic Load Rating: 7100 N; Static Load Rating: 13200 N
  • Environmental Protection Class (T suffix): IP65 full housing sealing with reinforced nitrile rubber bellows dust/water barrier
  • Standard Lubricant: High-temperature polyurea industrial grease for -20°C ~ +70°C wide temperature operation
  • Pre-Integrated Hardware: Dual mechanical travel limit switches (home limit + end stroke limit) with 2-meter shielded wiring harness
  • Net Weight (Actuator Only, No Motor): 5.6 kg
  • Overall Retracted Outer Dimensions (L × W × H): 360 mm × 132 mm × 108 mm

Material Composition

  1. Outer Telescopic Housing: Extruded 6063-T6 hard anodized aluminum alloy with anti-corrosion matte black coating
  2. Inner Nested Ball Screw Shaft: Chromium alloy quenched steel with full hard chrome wear-resistant plating
  3. Double Preloaded Ball Nut Assembly: Bearing-grade alloy steel precision ground internal raceways
  4. Linear Guide Rail & Slide Block: Martensitic fully hardened stainless steel components
  5. Reinforced Sealing Bellows: Multi-layer nitrile rubber with textile fiber reinforcement for IP65 splash resistance
  6. Servo Motor Mount Flange: CNC solid machined aluminum alloy with precision concentric tolerance
  7. Limit Switch Hardware: Hermetically sealed stainless steel microswitches with shielded copper wiring
  8. Internal Recirculating Balls: High-carbon chromium polished bearing steel spheres

Structural Features

  1. Two-stage nested telescopic ball screw mechanical design, drastically shortening retracted body length compared to single-stage TT actuators with identical travel stroke
  2. Dual heavy-duty parallel linear guide rails with widened slide block to resist vertical, horizontal and offset eccentric payload loads
  3. Reinforced multi-layer rubber bellows fully covering telescopic moving gaps to achieve IP65 water splash and fine dust blocking capability
  4. Factory pre-mounted dual travel limit switches with fixed-length shielded wiring harness, eliminating field wiring assembly work
  5. Inline direct servo motor flange structure removes intermediate coupling alignment error and transmission backlash
  6. Extended sealed grease reservoir for long-interval lubrication maintenance under continuous high-temperature operation
  7. Universal multi-direction tapped mounting holes on carriage plate for flexible fixture mechanical connection

Working Principle

Matched AKM servo motor generates precise controlled rotary torque input to the primary stage ball screw shaft. Two-stage nested ball screw converts rotary motion into two-tier telescopic linear displacement via recirculating steel ball contact between screw and double preloaded nut sets. Dual integrated linear guide rails constrain carriage movement to pure linear travel, eliminating lateral deflection and angular tilt during high-thrust operation. Servo encoder transmits real-time rotary position feedback to paired AKD / SERVOSTAR drive unit; drive triple closed-loop algorithms convert rotary encoder data to calibrated linear stroke coordinates for precise position, velocity and thrust regulation across full 107 mm travel range. Built-in mechanical limit switches output digital trigger signals to servo drive digital I/O channels to execute automatic soft deceleration and hard travel stop protection when carriage reaches stroke boundaries. Reinforced bellows fully enclose all moving telescopic gaps to block coolant, metal chips and industrial dust from contacting internal ball screw and guide rail assemblies, preserving long-term mechanical precision stability.

Function Features

  1. Telescopic two-stage nested structure minimizes retracted installation space for compact machine equipment layouts with limited axial clearance
  2. IP65 reinforced sealing bellows allows deployment in heavy coolant splash, metal chip cutting workshop environments
  3. Pre-installed home and end-stroke limit switches provide hard travel boundary protection without external sensor installation
  4. 18mm large ball screw lead supports high-speed rapid traverse linear motion while maintaining high continuous thrust output
  5. Polyurea high-temperature grease lubrication operates stably under wide ambient temperature fluctuation range
  6. Double preloaded ball nut assembly maintains near-zero bi-directional backlash for consistent ultra-precise positioning repeatability
  7. Wide heavy-duty slide block design tolerates eccentric offset payloads without permanent linear guide deformation

Advantage Highlights

  1. Telescopic mechanical architecture solves short installation length + long effective stroke conflicting requirements impossible for single-stage linear actuators
  2. IP65 full environmental sealing eliminates external protective bellows accessory costs and assembly labor
  3. Factory pre-wired limit switch harness cuts field wiring commissioning time by 60%
  4. High thrust density aluminum housing delivers 2200 N continuous thrust within compact cross-section dimensions
  5. Standardized AKM inline mounting flange full interchangeable with all AKM3/4 frame servo motor models
  6. Extended lubrication maintenance interval of 25,000 continuous operating hours reduces factory equipment downtime

Applicable Industries

CNC metal cutting machine tool auxiliary feed axes, automotive automated assembly fixture positioning, heavy-duty packaging press linear motion axes, industrial robotic end-effector telescopic positioning, metal stamping auxiliary slide mechanisms, injection molding mold ejection axes

Installation Requirements

  1. Horizontal, vertical up, vertical down and inclined mounting orientations all permitted; vertical downward heavy payload installation requires external mechanical counterbalance support
  2. Actuator base mounting fastener: M6 Grade 8.8 hex socket bolts, uniform 18 N·m tightening torque with anti-loosening spring washers
  3. Servo motor flange assembly concentricity tolerance ≤0.02 mm, flatness deviation ≤0.01 mm
  4. Payload center must align with carriage geometric center; lateral offset over 15 mm causes accelerated linear guide wear
  5. Minimum surrounding airflow clearance of 60 mm to prevent coolant mist buildup on bellows surface
  6. Limit switch shielded wiring separated from motor power cable by minimum 15 cm physical distance; perpendicular crossing only allowed
  7. Actuator housing protective earth connected to machine star ground via ≥4 mm² shielded copper wire

Operation & Maintenance Precautions

  1. Ambient operating temperature range: -20°C ~ +70°C; above 45°C apply linear 12% continuous thrust derate per 10°C temperature rise
  2. Ambient relative humidity ≤90% non-condensing; prohibit use in environments with corrosive acid/alkaline vapor
  3. Never apply impact radial load to carriage plate during fixture installation; only soft clamping fixtures permitted
  4. Lubrication maintenance cycle: Inject polyurea grease every 25,000 continuous operating hours through dedicated external lubrication port
  5. Bi-monthly visual inspection of rubber bellows; replace immediately if tear, crack or coolant penetration signs appear
  6. Strictly prohibit sustained operation above 300% peak overload thrust; permanent ball screw raceway surface damage occurs
  7. Cut servo drive full mains power before detaching servo motor or disconnecting limit switch wiring harness

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