PRODUCTS

SD520 Horizontal Directional Drilling Rig

The SANY SD520, a brand-new best-selling drilling rig, redefines the core features of trenchless construction. Its core components, such as pumps, valves, and engines, are jointly designed and manufactured by internationally renowned manufacturers to ensure superior quality and meet the professional needs of SANY customers. The SD520 is suitable for municipal pipeline crossing projects in water supply, drainage, power, communication, and heating sectors, and is suitable for soil, soft rock, and hard rock conditions. It is a powerful tool for overcoming challenges in trenchless construction, featuring high efficiency, reliability, intelligence, and comfort. Large-capacity pump, powerful engine, high-flow mud pump, and EasyVision technology.

+86 15190256168

peter@sanygroupltd.com

Highly Efficient Construction

Product Features

Highly Efficient Construction Optimized matching of four main working parameters—high torque, high speed, high push-pull force, and high push-pull speed—ensures the system always operates in its high-efficiency range with intelligent power distribution technology. In soil, the equipment can perform advanced borehole enlargement and rapid pipe dragging; in rock layers, it can powerfully penetrate rock and quickly complete borehole enlargement. The reliable and durable main unit utilizes SANY's proven engines, pumps, valves, and motors, along with SANY's independently developed sixth-generation controller and display screen. These key components have undergone extensive verification and multiple optimizations across tens of thousands of SANY products.

Automated Functions: Intelligent Drilling/Retreat: Automatic drilling/retreat eliminates the need for human operation, resulting in high efficiency.
Quick Rod Loading/Unloading: A single button press allows the robotic arm to quickly load and unload rods. EVI Function Connects Customers to the Machine: Customers can monitor machine status in real-time via their mobile phones, including gear position, torque, push/pull force, and speed; and view working hours, fuel consumption, and fuel level to understand construction costs.
Comfortable Operation: Shock-absorbing technology minimizes vibration during rock work, ensuring high operator comfort.
Integrated Handle Buttons: Routine operations can be performed without moving the operator's arm.
High-Definition Touchscreen: Clear display regardless of light conditions; page-turning function includes fault self-diagnosis pages, maintenance reminders, and other information, providing thoughtful service.
Quiet Cab: Closed doors and windows effectively isolate construction noise; four-sided glass provides a wide field of vision. The 800L mud pump provides ample mud flow, meeting the flow requirements for rock conditions, eliminating the need for an external pump and saving costs.

Category	Parameter Name	Value
Machine Parameters	Weight	17000kg
	Dimensions	8770×2565×2515mm
	Engine Power	212kW
	Insertion Angle	12-20°
	Maximum Climbing Height	18°
	Applicable Drill Rod	φ89×4500mm×mm
	Maximum Reaming Diameter	φ1200mm
	Maximum Working Distance	7m
Main Parameters	Maximum Push-Pull Force	600kN
	Maximum Push-Pull Speed	40m/min
	Maximum Torque	27700N·m
	Maximum Speed	120r/min
Mud Pump Parameters	Maximum Mud Pump Flow Rate	800L/min
Mud Pump Parameters	Maximum Mud Pump Pressure	10Mpa

OUR FACTORY

SANYI MACHINERY CO., LTD.--Your Reliable Partner in Global Construction Machinery Solutions

Sanyi Machinery Co., Ltd. is a renowned construction machinery manufacturer based in China, serving a global clientele. The company is dedicated to providing high-performance, highly reliable, and comprehensive engineering machinery products and one-stop solutions for global infrastructure construction. Leveraging profound technological expertise, a complete product portfolio, and a robust global service network, Sanyi Machinery has become a trusted brand in the international market.

Core Competitive Advantages

High-Quality & Durable Products

Sanyi Machinery consistently regards technological innovation as vital to our development. We have a dedicated R&D team focused on intelligent electro-hydraulic control systems, energy-saving technologies, and ergonomics. Our products utilize a top-tier global supply chain to ensure the performance of core components. Through stringent quality control systems and lean manufacturing processes, we guarantee that every machine delivered offers high reliability, efficiency, and long service life.

Global Perspective, Proven Experience

Our products have been successfully exported to over 50 countries and regions worldwide, including Southeast Asia, the Middle East, Africa, South America, and Europe. Sanyi equipment has earned widespread acclaim from international customers for its excellent environmental adaptability and operational reliability in numerous overseas projects involving highways, railways, ports, real estate, and energy. We understand the standards and needs of different markets and can provide products tailored to local working conditions.

Worry-Free Service, Solid Reputation

We understand that reliable service is the cornerstone of customer confidence. Sanyi Machinery has established parts centers and service facilities in multiple strategic global markets, supported by an international team of experienced engineers. We are committed to providing fast parts supply, professional on-site technical support, and efficient troubleshooting. "Reliable equipment, responsive service" is the feedback we most frequently receive from customers, which inspires us to continually exceed expectations and build long-term, mutually trusting partnerships.

Building the Future Together

Looking ahead, Sanyi Machinery Co., Ltd. will continue to uphold the principle of "Customer First, Technology-Driven, and Collaborative Win-Win." We aim to engage with global customers using smarter and more environmentally friendly construction machinery to jointly build a better world.

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FAQ

How to protect equipment during transportation to avoid collision, rust, or component damage?

Multi-layer protective measures need to be adopted, covering the entire process of packaging, fixing, and monitoring:

Packaging Protection: Wrap collision-prone components (e.g., cab glass, hydraulic pipeline interfaces) with bubble film and plywood boxes; spray anti-rust oil on exposed metal parts (e.g., boom connection pins, track plates) and cover them with waterproof tarpaulins; install waterproof and dustproof covers for electrical components (e.g., display screens, sensors).

Transportation Fixing: Lay anti-slip rubber pads on transportation vehicles (flatbed trucks, railway flatcars), fix the equipment in special card slots with high-strength steel wire ropes or chains, and place rubber blocks at the contact points between the steel wire ropes and the equipment (to avoid wear on the paint and metal surfaces); for crawler-type equipment, additional fixing of the track tensioning device is required to prevent track loosening during transportation.

Full-Process Monitoring: Install GPS positioning systems and temperature-humidity sensors on transportation vehicles to monitor the transportation route and the environment inside the carriage in real time (e.g., coastal transportation needs to prevent rust caused by high temperature and humidity); during long-distance transportation, arrange escorts to check the fixing status regularly and re-tighten the steel wire ropes in time if looseness is found.

After the equipment is delivered to the construction site, what key processes need to be completed for delivery acceptance?

The acceptance needs to be participated in by the manufacturer and the customer (or the construction party), with the core process including 3 steps:

Appearance and Accessory Inspection: Compare with the delivery list to check whether the equipment appearance has transportation damage (e.g., paint scratches, component deformation), and confirm whether the accompanying accessories (e.g., spare filters, tool kits, operation manuals) are complete. If there is any shortage or damage, take on-site photos for records and have both parties sign for confirmation.

Performance Testing: Conduct no-load test runs (e.g., start the engine to check the running sound, operate the working device to test the movement flexibility) and load tests (e.g., excavate loose soil with an excavator to test the digging force, lift standard counterweights with a crane to test the lifting stability). The test data must meet the requirements of the equipment technical parameter sheet.

Document Handover and Training: The manufacturer hands over the equipment technical documents (e.g., certificate of conformity, warranty card, maintenance manual) to the customer, and conducts on-site training for the operators at the same time. The training content includes equipment operation specifications, daily inspection items (e.g., oil level inspection, tire pressure detection), and emergency handling methods (e.g., emergency start for engine shutdown). After the training is completed, both parties sign the Equipment Acceptance Form to confirm the completion of delivery.

If the equipment is damaged during transportation due to force majeure (e.g., heavy rain, earthquake), how to divide the responsibility?

The responsibility division is mainly based on the transportation contract agreement and insurance clauses, usually following the following principles:

Transportation Insurance Purchased: If the manufacturer or the customer has purchased "cargo transportation insurance" for the equipment, and force majeure is within the insurance coverage, the insurance company will settle the claim according to the loss degree (e.g., repair costs, component replacement costs). After settling the claim, the insurance company may claim compensation from the third party causing the loss (e.g., the road management party failing to clear the collapsed road section in time).

No Transportation Insurance Purchased: If no insurance is purchased, check the "force majeure liability clause" in the transportation contract—if the contract stipulates that "the carrier only bears routine transportation risks, and the loss caused by force majeure shall be borne by the cargo owner", the loss shall be borne by the customer (cargo owner); if the contract stipulates that "the carrier shall fully ensure the safety of the cargo, and still bear part of the responsibility under force majeure", the carrier and the customer shall negotiate to share the loss (usually in a ratio of 3:7 or 4:6).

Special Agreements: If the equipment is a customized product and cannot be repaired after being damaged due to force majeure, or cannot meet the use requirements after repair, both parties may negotiate to re-produce (the cycle and cost need to be re-confirmed) or terminate the contract. The specific implementation shall be in accordance with the "customized product delivery breach clause" in the contract