PRODUCTS

SZR30C-8S Light Roller (Combined Unit)

High Compaction Efficiency: 67Hz high-frequency vibration, with compaction efficiency 20% higher than the industry average. Compaction speed reaches 11km/h, 10% faster than the industry standard. The drum edge protrudes 120mm, enabling more efficient and smoother edge compaction.

+86 15190256168

peter@sanygroupltd.com

Parameter Category	Specific Parameter Item	Parameter Value
Basic Parameters	Engine Brand & Model	Quanchai V20-38C41
Rated Power	28 kW
Operating Weight	3000 kg
Front/Rear Load Distribution	1450/1550 kg
Vibration Frequency	55/67 Hz
Additional Parameters	Vibration Frequency (Low / High)	55/67 Hz
Exciting Force (Large / Small)	46/28 kN
Theoretical Climbing Capacity	30%
Key Parameters	Rated Power	28 kW
Operating Weight	3000 kg
Exciting Force	28/46 kN

Item	Unit	STR30C - 8S (Tandem Drum)	SZR30C - 8S (Combination Roller)
Engine Model	-	Quanchai V20 - 38C41	Quanchai V20 - 38C41
Rated Power / Speed	kW/rpm	28/2600	28/2600
Operating Weight	kg	3000	2900
Front/Rear Load Distribution	kg	1450/1550	1400/1500
Static Linear Pressure	-	118/126 N/cm	115/490 Kpa
Vibration Frequency (Low / High)	Hz	55/67	55/67
Amplitude	mm	0.5	0.5
Exciting Force (Large / Small)	kN	46/28	46/28
Drum Diameter / Width	mm	700/1200	700/1200
Theoretical Climbing Capacity	%	30	30
Fuel Tank Capacity	L	40	40

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