Price: $32.99 | Compatible Instruments: Leica FlexLine TS02, TS06, TS06plus, TS09, TS09plus, TZ05, TZ08, TZ12 Survey Total Station; Matching Parts: Telescope Objective Glass, TZ08 Battery Door, TS09 Silicone Keyboard, GEB361 Lithium Battery, GKL311 Dual AC/Car Charger

This OEM-spec objective lens retaining ring solves telescope optical assembly common faults for Leica FlexLine series total stations: original lock ring thread stripped after repeated disassembly, knurled outer surface worn smooth leading to slipping during tightening, ring cracked by field collision, loose objective lens causing line-of-sight deviation & ranging precision drop, inferior generic rings mismatched thread pitch scratching objective lens barrel, and unfastened lens ring triggering ATR automatic tracking failure for robotic observation. 1:1 CNC precision machined threaded lock ring with full anti-slip knurl outer surface, firmly clamp telescope objective glass to restore factory-standard millimeter-level ranging and angle measurement accuracy for tunnel deformation monitoring, high-speed railway control network and municipal pipeline stakeout projects.

Product Overview

The Leica universal objective lens retaining ring (objective lock ring) is a dedicated optical fixing spare part exclusively manufactured for Leica FlexLine TS/TZ series entry & high-precision total stations, fully interchangeable across all matched telescope models. Integrated one-piece solid aviation aluminum alloy body, precision internal matching thread, full circumferential vertical knurled anti-slip outer texture, built-in limit positioning step inside ring cavity. Whole blank CNC turning & thread tapping process, uniform thread tooth spacing without burrs, perfectly match the telescope objective lens barrel thread of TS06/TS09/TZ08 instruments. Outer knurled texture with moderate depth, easy single-hand twist tightening/loosening even with muddy, sweaty palms on construction sites. Hard black anodized anti-corrosion surface treatment, anti-rust, anti-mud and anti-UV oxidation, long-term outdoor field use will not peel paint or deform. Internal limit shoulder restricts objective lens axial displacement, eliminate lens shaking during long-distance vehicle transport and mountain slope vibration measurement. After installation, the lock ring closely fits the telescope front housing, maintain instrument original IP54/IP66 dust & splash waterproof grade, block fine dust, rainwater and tunnel slurry polluting objective lens optical surface to avoid ranging attenuation and reading offset. Direct twist-on replacement without complex optical calibration after installation for routine maintenance repair.

Core Advantages & Practical Structural Design

• 100% OEM internal thread pitch, inner limit step dimension, outer ring contour and knurl layout fully consistent with factory original objective lens retaining ring, direct twist-on maintenance replacement for stripped, cracked or worn slippery original lock ring
• Solid aviation aluminum alloy one-piece blank, high rigidity anti-drop anti-crack, no permanent thread deformation under repeated tightening torque, far superior to fragile plastic imitation rings
• Full circumferential deep vertical knurled anti-slip outer surface, large friction texture, stable twist operation without slipping even in rainy muddy construction environments
• Precision chamfered internal thread inlet, smooth thread engagement to avoid cross-thread scratch damage to expensive telescope objective lens barrel metal threads during fast field disassembly
• Built-in inner limit positioning shoulder, axially lock objective lens tightly without forward/backward shake, eliminate line-of-sight drift and ranging precision loss caused by loose optical components
• Hard matte black anodized anti-corrosion coating, easy to wipe mud and dust without leaving scratch marks, long service life without rusting in damp underground tunnel sites
• Wide cross-model universal compatibility: FlexLine TS02/TS06/TS09 and TZ05/TZ08/TZ12 all manual & touch screen total stations, perfectly matched with GEB361 high-capacity lithium batteries and GKL311 AC/car dual-use dedicated lithium charger
• Compatible matching accessory: Trimble TSC3 / TSC2 Yellow Nylon Carrying Case ($25, 0.2kg, 18 × 12 × 10 cm)
• Compact circular thin ring structure, ultra-lightweight easy storage in instrument maintenance tool pouch alongside telescope objective glass, battery doors, silicone keyboard mats and mechanical repair small spare parts

TS/TZ Series Total Station Optical Maintenance & Field Survey Application Scenarios

Necessary low-cost optical maintenance spare part for rural cadastral boundary mapping, residential building construction layout stakeout, municipal pipeline control network measurement, open-pit mine high-precision topographic survey and long-term foundation settlement monitoring TS/TZ total station projects. When original objective lock ring slips, cracks or thread stripping leads to loose objective lens, survey maintenance technicians unscrew the faulty ring and install this full OEM aluminum retaining ring, fasten to clamp objective lens firmly to restore stable unshifted line of sight and consistent ranging precision. Deep knurled anti-slip outer texture ensure convenient single-hand disassembly operation during daily instrument maintenance; integrated inner limit shoulder completely solve lens shake, ranging attenuation and ATR tracking dropout faults to guarantee uninterrupted millimeter-level precision all-day field measurement. Store this objective lens retaining ring and other tiny survey maintenance peripherals in our high-visibility yellow nylon data collector case; reinforced canvas belt loop supports waist hanging for convenient cross-region field instrument repair transport.

Product Specifications

Matching Survey Accessory: Trimble TSC3 / TSC2 Yellow Nylon Carrying Case ($25)

Constructed with thick tear-proof nylon fabric, this bright yellow field protective bag shields Trimble TSC2 & TSC3 handheld data collectors from scratches, dirt and minor impact damage. Equipped with solid canvas belt loop for waist mounting, the independent front storage compartment holds objective lens retaining rings, TZ08 battery door assemblies, TS09 silicone keyboard mats, PN879743 TZ08 angle encoders and touch screen protectors. 20 units available in warehouse for immediate worldwide shipping.

Browse more Leica FlexLine TS/TZ series optical maintenance spare parts, objective lock rings, telescope objective glass, touch LCD display assemblies and lithium power accessories on xsurveying.com. We supply full series OEM-standard survey instrument optical repair hardware to fully stabilize telescope objective lens assembly and restore factory-standard ranging & angle precision of TS/TZ total stations for uninterrupted high-precision tunnel, railway and infrastructure field measurement workflows.