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Modern civil infrastructure relies on increasingly deep and complex cast-in-place piling designs. In regions featuring unconsolidated soils, marine sediments, or high groundwater levels, temporary steel casings are driven deep into the earth to prevent borehole collapse and protect the integrity of surrounding structures. Once concrete placement is complete, extracting these massive temporary casings presents a formidable mechanical challenge.
Traditional methods—relying purely on crawler crane hoist tension or mechanical vibratory hammers—often fall short due to extreme skin friction accumulated along the casing surface. This can lead to equipment overloading, safety hazards, and deformed steel casings. The engineering shift toward full hydraulic casing extractors represents a critical evolution in foundation safety, environmental compliance, and cost efficiency.
A high-performance full hydraulic casing extractor functions as an independent, high-force clamping and lifting unit. Unlike oscillators that oscillate the casing back and forth to break friction, an extractor uses dual-cylinder or multi-cylinder configurations aligned vertical to the pile axis. This concentrates the force purely upward, protecting the casing thread joints and body from structural fatigue.
Key design elements include heavy-duty wedge clamping systems, high-displacement hydraulic cylinders, and optimized control valves. The hydraulic power is typically supplied by specialized external power packs, such as the OEM SPS37 Hydraulic Power Pack, ensuring independent pressure regulation. Operators can adjust clamping pressure independently of the main hoist, preventing casing slippage during demanding extractions.
For operators using drilling rigs (like the TR100, TR35, or TR400 models), integrating a compatible casing extractor means the rig is freed from excessive pulling tasks. This reduces wear on the mast structures and main winches, extending the lifetime of the primary capital equipment.
Integrating advanced technology, strict quality control systems, and strategic logistics advantages from our base in China.
Established in Beijing and expanding production capabilities, SINOVO Heavy Industry has built a state-of-the-art production base occupying 7,800 square meters. Equipped with over 50 pieces of heavy machining, welding, and testing systems, the plant produces specialized core drilling rigs, water well drilling rigs, and heavy rotary rigs annually.
Our manufacturing facility in the Xianghe Emerging Industry Demonstration Zone covers 67 mu, representing a total investment of 120 million yuan. Situated only 100 kilometers from the Tianjin port, we benefit from convenient logistics that reduce transport times and lower ocean freight costs for international buyers.
Our core team has been serving the global construction machinery field since the early 1990s. Today, all products have obtained ISO9001:2015 certification, CE certification, and GOST certification. With sales networks spanning over 120 countries across Southeast Asia, Africa, the Middle East, and Europe, SINOVO offers global support for equipment, tools, and spare parts.
Proof of reliability in diverse geological environments and challenging weather conditions worldwide.
Sinovo crawler crane in Bangladesh
Sinovo drilling rig in Saudi Arabia
Sinovo rotary drilling rig in Singapore
The Sinovo hydrostatic machine is in Bangladesh
The Sinovo rotary rig in Saudi Arabia (1)
The Sinovo rotary rig in Saudi Arabia (2)
The Sinovo well rig is in Dr Congo
TR180F rotary drilling rig in Bangladesh
TR200D - Lebanon
TR250D - Lebanon
Providing end-to-end technical support, from pre-purchase planning to field-level operational training.
We provide comprehensive technical data, drawing sheets, and load calculations to ensure selected machinery matches regional geology. Third-party inspections are supported, and rigs can be adjusted to specific casing diameters or project constraints.
Typical delivery times range between 10 to 15 days, with longer timeframes reserved for customized configurations. We coordinate local transport, port handling, and custom declarations to ensure secure transit to your destination.
We offer 1-2 weeks of on-site service, operator training, and field commissioning programs. Equipment features a one-year warranty. We supply replacement parts and technical consulting to support machinery repair and maintenance.
SINOVO Heavy Industry products conform to international quality standards for deep foundation engineering equipment.
ISO9001 Quality System Certificate
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GOST (TR) Certificate (1)
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A tour of our manufacturing workshops, assembly bays, design labs, and exhibition booths.
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Assembly Line
Rig Commissioning Ground
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Browse our catalog of micro-pile rigs, core drilling systems, hydraulic splitters, and top-drive anchors.
Review engineering tolerances, weight, limits, and rotational specifications for deep mixing foundation systems.
| Specification Parameter | Technical Metric Value | Specification Parameter | Technical Metric Value |
|---|---|---|---|
| Main Motor Power | 75 KW | Drilling Force / Pullback Force | 460 KN |
| Drilling Motor Power | 18.5 KW | Maximum Piling Depth Limit | ≤ 28 Meters |
| Oil Pump Motor Power | 18.5 KW | Drill Rod Cross-Section | 180 x 180 x 16 mm |
| Piling Diameter Range | ≤ 1200 mm | Total Rig Weight (Dry) | 25,000 KG |
| Mast Height Structure | Type II - 30 Meters | Base Frame Dimensions | 8200 x 2300 mm |
| Drilling Speed | 0.05 - 2.2 m/min | Rotational Speed (Forward/Reverse) | Forward: 5-96 RPM / Reverse: 5-90 RPM |
Technical guidance from our senior engineering team to help you optimize casing recovery on site.
A casing oscillator breaks skin friction by combining rotational oscillation with vertical lift, requiring integration with the undercarriage of a rotary drilling rig. A full hydraulic casing extractor works purely on a vertical line using high-pressure hydraulic cylinders to clamp and pull the casing straight up. Rigs don't require structural integration with extractors, which can operate independently with an external hydraulic power pack (e.g. SPS37).
Skin friction increases based on soil cohesion, depth, and duration in the borehole. Over time, concrete hydration pressure makes extraction harder. The B1200 matches casings up to 1200mm, while the B1500 matches diameters up to 1500mm. These units generate high extraction forces that overcome skin friction, preventing casing losses or damage to structural concrete.
Yes, if the drilling rig (e.g. TR400 or TR100) has an auxiliary circuit that meets the pressure and flow requirements of the extractor's clamping and lifting cylinders. Otherwise, we recommend using a standalone power pack to ensure maximum pressure without compromising the rig's hydraulic functions.
Clamping jaws are subject to extreme surface pressures and wear. Check the jaw teeth regularly for wear and debris, and clean off soil or concrete residue. Lubricate sliding wedges daily, and monitor clamping cylinders for micro-leaks to prevent casing slippage during lifts.
Explore auxiliary equipment options, including diaphragm wall systems, water well rigs, core drills, and accessory parts.
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