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Excavator 2-Stage Telescopic Stick

Excavator 2-Stage Telescopic Stick

A two-stage telescopic dipper stick with nested extendable sections for extended reach in deep excavation and slope work. Four models cover 20 to 50 ton excavators with extended stick lengths from 10 to 18 meters and maximum working reach from 12 to 20 meters, with a simpler two-section design than three-stage configurations.
Product Name: 2-stage telescopic stick / Two-stage telescopic dipper / 2-section telescopic arm / Double telescopic arm / Excavator extendable dipper
Type: Booms & Sticks
After-sales Service: Provided
Warranty: 1 Year
Customization: Available
Shipping Cost: Negotiate with us about shipping cost and estimated delivery time.
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Overview
FAQ

Product Overview

The TGEC 2-stage telescopic stick uses a pair of nested arm sections that slide in and out to deliver extended reach for deep digging, slope work, and moving material across long distances. The two-stage configuration provides extended reach while using fewer telescoping sections than a three-stage design, resulting in a simpler mechanical layout. Four models are available for excavators from 20 to 50 tons, with extended stick lengths from 10 to 18 meters (maximum working reach from 12 to 20 meters) and retracted dimensions that can simplify transport planning, subject to local height, weight and permitting requirements. It's a key part of the TGEC excavator boom and arm assemblies lineup, designed for contractors who need extended reach with a two-stage configuration and straightforward maintenance requirements. For more insight into telescopic options, check out our telescopic excavator boom guide and telescopic excavator arm reference.

Available Configurations & Models

We offer four models spanning 20 to 50 ton excavators. All measurements are approximate and can vary depending on the final configuration and the specific machine it's fitted to.

ParameterTG-TS20TG-TS30TG-TS40TG-TS50
Excavator Class20–25 t (22–27.5 ton)30–35 t (33–38.5 ton)40–45 t (44–49.5 ton)45–50 t (49.5–55 ton)
Retracted Length5500 mm (18.0 ft)6500 mm (21.3 ft)7500 mm (24.6 ft)8500 mm (27.9 ft)
Extended Length10000 mm (32.8 ft)12500 mm (41.0 ft)15000 mm (49.2 ft)18000 mm (59.1 ft)
Max Reach12000 mm (39.4 ft)14500 mm (47.6 ft)17000 mm (55.8 ft)20000 mm (65.6 ft)
Bucket Capacity0.3–0.5 m³ (0.39–0.65 yd³)0.4–0.7 m³ (0.52–0.92 yd³)0.6–0.9 m³ (0.78–1.18 yd³)0.7–1.1 m³ (0.92–1.44 yd³)
Cylinder Rating15 t (16.5 ton)20 t (22 ton)25 t (27.5 ton)30 t (33 ton)

Table data is for reference only. Cylinder Rating refers to the hydraulic cylinder force rating. Actual specifications may vary based on the final configuration. Please contact the TianGe technical team for details.

Series-Wide Technical Highlights

  • Two nested telescoping sections provide extended stick lengths from 10 to 18 meters, with maximum working reach from 12 to 20 meters depending on model.

  • Fewer wear parts to worry about: only one sliding interface to grease and inspect regularly.

  • Retracted lengths run from 5.5 to 8.5 meters, supporting practical road transport subject to local height, weight and permitting requirements.

  • Built from high-strength steel with wear-resistant slide guides and bushings at the telescoping joint for lasting performance.

  • Mounting brackets are custom-made for each excavator make and model, with pin spacing and diameters verified against the specified machine dimensions.

Excavator Compatibility Guidance

TGEC 2-stage telescopic sticks come in four sizes for excavators from 20 to 50 tons. TG-TS20 is configured for 20–25 ton excavators; TG-TS30 for 30–35 ton excavators; TG-TS40 for 40–45 ton excavators; and TG-TS50 for 45–50 ton excavators. The mounting interface is configured to match the specified excavator make and model. Because the longer arm creates more leverage, the allowable bucket capacity may be lower than with a standard arm configuration and should be confirmed for the specific machine and working geometry. When ordering, provide the excavator make and model, operating weight, pin-to-pin spacing, pin diameter, and stick width, and the technical team will complete the configuration review.

Typical Applications

  • Deep excavation: Dig deep foundations, basements, and underground structures that a standard arm can't reach.

  • Slope and embankment work: Cut and shape steep hillsides and embankments from above or below.

  • Marine and waterfront work: Support extended-reach excavation around channels, shorelines, and other waterfront projects where the machine configuration allows.

  • Long-distance material handling: Span wide excavations, barriers, or water to move material efficiently.

  • Utility and pipeline work: Dig deep trenches for large-diameter pipes and underground infrastructure.

Working Principle

The 2-stage telescopic stick uses two nested sections—an outer one that connects to the boom and an inner one that slides out via a hydraulic cylinder. The bucket or attachment mounts to the end of the inner section. When fully extended, the stick measures 10 to 18 meters (depending on the model), delivering a maximum working reach of 12 to 20 meters when mounted on the carrier boom. Retract it, and the inner section tucks back into the outer, giving you a compact 5.5 to 8.5 meters for transport. The sliding surfaces are fitted with wear-resistant guides and bushings to keep everything aligned and smooth. With only one sliding interface, maintenance is simpler than on a three-stage unit. Because the extended arm increases leverage, bucket capacity should be selected according to the specific model, excavator stability, and working conditions.

Dealer & Bulk Orders

TGEC supplies 2-stage telescopic sticks directly to equipment dealers, excavation contractors, marine specialists, and utility companies through factory-direct and bulk programs. These come with volume pricing and dedicated account management. Custom configurations are available for excavator brands popular in your market. OEM and private-label options are available with custom paint, logos, and packaging. Get in touch with the TGEC dealer sales team with your company info, target excavator models, and estimated annual volume to set up a wholesale account.

Request a Quote — Excavator 2-Stage Telescopic Stick

Let us know your excavator make and model, operating weight, pin-to-pin spacing, pin diameter, stick width, preferred model (TG-TS20 through TG-TS50), required bucket capacity, primary application (deep excavation / slope / marine / utility), and the quantity you're after. Our team will confirm the right setup, verify mounting fit, recommend the proper bucket size, and get back to you with a factory-direct quote, lead time, and shipping details.

Dealer and OEM inquiries: Contact TGEC to discuss volume supply, custom configurations, private-label requirements and long-term sourcing programs.

Frequently Asked Questions

What is a 2-stage telescopic stick?+

A 2-stage telescopic stick, also known as a two-stage telescopic dipper or 2-section telescopic arm, is an arm configuration with two nested sections that extend and retract using a hydraulic cylinder to provide moderate extended reach beyond what a standard arm can achieve. The outer section connects to the boom, and the inner section slides within the outer section, with the bucket or attachment mounting at the end of the inner section. When fully extended, the stick measures 10 to 18 meters depending on the model, with a maximum working reach of 12 to 20 meters on the carrier machine, and when retracted, the nested sections compact the arm for transport. The two-stage design offers a balance between extended reach and simplified maintenance, with fewer wear components than a three-stage configuration.

What applications use a two-stage telescopic dipper?+

Two-stage telescopic dippers are used in applications requiring moderate extended reach beyond a standard arm but not the maximum reach of a three-stage configuration. Common applications include deep excavation for foundations and underground structures, slope and embankment work for cutting and shaping steep terrain, marine and waterfront work including channel and shoreline excavation, long-distance material handling across wide excavations or barriers, and deep trench work for large-diameter pipelines and underground utilities. The extended reach can reduce the need for excavator repositioning in applications where the required working area is within the machine's reach envelope.

What excavator information is required for matching?+

To match a 2-stage telescopic stick to your excavator, provide the excavator make and model, operating weight, pin-to-pin spacing at the boom-to-arm connection, pin diameter at both the boom and bucket connections, stick width at the pivot points, bucket linkage geometry, and the intended bucket capacity or attachment type. Also specify the maximum required working reach for the application. This information allows the technical team to verify the mounting bracket geometry, confirm the correct model size, and ensure the extended arm is compatible with the excavator lift capacity and stability. If the excavator uses a quick coupler, provide the coupler brand and model as well.

How is a two-stage telescopic stick configured?+

A two-stage telescopic stick is configured with two nested arm sections: an outer section that connects to the boom, and an inner section that slides within the outer section. A hydraulic cylinder extends and retracts the inner section, with wear-resistant slide guides and bushings at the interface to maintain alignment. The bucket or attachment mounts to the end of the inner section. The configuration is designed for a specific excavator class, with the retracted length, extended length, bucket capacity and cylinder rating matched to the machine size. The two-stage design has only one slide interface, making it simpler to maintain than a three-stage configuration with two interfaces. Custom configurations may include alternative extension lengths or modified attachment mounts.

Can the stick be customized for different excavator models?+

Yes. TGEC can configure 2-stage telescopic sticks for specific excavator makes and models. Provide the machine details and mounting dimensions so the technical team can verify the configuration. Custom modifications may include alternative extension lengths, modified slide guide designs, reinforced sections for heavy-duty applications, or specialized attachment mounts. Custom paint colors, branding and packaging are available through the OEM program. Provide the excavator details and application requirements, and the technical team will produce custom fabrication drawings for approval before production begins.

What maintenance does a two-stage telescopic stick require?+

A two-stage telescopic stick has one sliding interface. Slide guides and bushings should be greased at the intervals specified by the manufacturer and inspected regularly for wear, excessive play, or uneven contact. Always use the specified grease type and follow the manufacturer's service schedule to maximize component life.

What working conditions should be considered when selecting the stick?+

When selecting a 2-stage telescopic stick, consider the maximum required reach for the application, the type of material being handled (soil, rock, etc.), the required bucket capacity, the excavator lift capacity at the extended reach, and the working environment including ground conditions, slope angles and overhead obstructions. The extended arm may reduce the allowable bucket capacity due to increased leverage, so the bucket size should be matched to the model specifications and confirmed for the specific machine. Also consider the maintenance requirements for the telescopic mechanism, including periodic greasing of slide guides and inspection of wear components. Verify transport requirements for the retracted assembly.

Can TianGe provide OEM two-stage telescopic sticks?+

Yes. TianGe offers OEM and private-label production for excavator 2-stage telescopic sticks and extendable arms, with custom paint colors, logo placement, packaging and documentation. OEM production can be discussed based on the required configuration, branding, and order volume, with competitive volume pricing for equipment dealers, excavation contractors and attachment distributors. OEM units are produced under TGEC's standard production and quality control processes, with private-label replacement parts and wear components available for after-sales support. Custom mounting brackets can be configured for the excavator brands common in your target market. Contact the sales team with your company details, target market and estimated volume for a customized OEM proposal.

What information should dealers provide for a quotation?+

Dealers should provide the target excavator makes and models common in their market, the typical operating weight range, available pin dimensions for each machine model, the primary applications their customers use telescopic sticks for (deep excavation, slope, marine, utility), the typical bucket sizes required, and the expected order volume. Confirm whether customers require pin-on or quick-coupler mounting configurations. Specify any custom branding, paint color or packaging requirements. Dealers should also understand the transport dimensions, weight and shipping arrangements for each model size. Contact the TGEC dealer sales team with this information to set up a wholesale account and receive volume pricing.

What should contractors confirm before ordering?+

Contractors should confirm the maximum required reach for their typical applications, the excavator make and model the stick will mount to, the available lift capacity and stability with the extended arm, the required bucket capacity for the material being handled, and whether the machine will be used exclusively for extended-reach work or needs to switch back to standard arm configuration. Also consider the maintenance requirements for the telescopic mechanism, including periodic greasing and wear component inspection. Verify that the reduced bucket capacity with the extended arm is sufficient for the intended production rate. Confirm transport requirements, as the extended arm may require special transport arrangements.

What is the difference between a two-stage and three-stage telescopic stick?+

The main difference between a two-stage and three-stage telescopic stick is the number of nested sections and the resulting maximum reach. A two-stage stick has two sections (outer and inner) with an extended stick length from 10 to 18 meters (maximum working reach 12 to 20 meters), while a three-stage stick has three sections with an extended stick length from 14 to 22 meters (maximum working reach 16 to 24.5 meters). The three-stage design provides greater maximum reach and a more compact retracted length relative to its extended length, but has more wear components (two slide interfaces instead of one) and requires more maintenance. The two-stage design has fewer wear points and simpler maintenance, but provides less maximum reach. Bucket capacity depends on the excavator, stick configuration, working radius, and required stability. The appropriate capacity should be confirmed for the specific machine and application. Choose two-stage for moderate reach with simpler maintenance, and three-stage for maximum reach applications.

How can I request a quotation for a 2-stage telescopic stick?+

To request a quotation, provide the excavator make and model, operating weight, pin-to-pin spacing, pin diameter, stick width, preferred model (TG-TS20 through TG-TS50), required bucket capacity, primary application (deep excavation, slope, marine, utility), maximum required reach, mounting or coupler type, and the quantity required. If you are unsure which model fits your excavator, include the machine details and application requirements, and our technical team can recommend the optimal configuration. Dealers and OEM customers should include company details, target market and estimated volume for a customized supply proposal. Contact us through the website inquiry form or email the sales team directly.
Please make sure to include your phone number with the country code (e.g., 86 for China, 1 for USA).