ranroswang@hksparkling.com 
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MADE IN CHINA SPARKLING MACHINERY NEW HX330L 39K9-12100 SWING REDUCTION GEAR
SPARKLING MACHINERY NEW HX330L 39K9-12100 Swing Reduction Gear is a premium China-made transmission component specifically engineered for HX330L excavators. As a critical part of the swing system, it converts high-speed, low-torque input into low-speed, high-torque output, enabling smooth and controlled rotation of the upper structure (boom, arm, and bucket) during precision positioning, material handling, and heavy-duty operations.
Designed to original equipment standards, it maintains stable power transmission and efficient torque conversion even under continuous rotational stress and heavy loads. With optimized gear design for minimal friction and noise, it adapts seamlessly to harsh working environments, from construction sites to mining areas. Backed by strict quality verification, it guarantees consistent performance to support uninterrupted machinery operation.
Your machinery’s rotational precision begins with a swing reduction gear built for reliability.
Now, we’re proud to present the MADE IN CHINA SPARKLING MACHINERY NEW HX330L 39K9-12100 Swing Reduction Gear — a precision-engineered transmission core designed to elevate your excavator’s swing efficiency. Next, we’ll guide you through its key advantages, from seamless compatibility to robust performance, to showcase how it adds value to your operations.
The SPARKLING MACHINERY NEW HX330L 39K9-12100 SWING REDUCTION GEAR Photo:
First and foremost, thank you from the bottom of our hearts for choosing SPARKLING MACHINERY! Your trust is the driving force behind our dedication to crafting excellence in every component.
For HX330L excavators, the swing reduction gear is the "rotational backbone" that ensures smooth upper structure movement, and SPARKLING’s NEW 39K9-12100 Swing Reduction Gear is meticulously engineered to excel in this vital role. Below, discover the key reasons that make it a standout choice for reliable swing performance.
Why choose the SPARKLING NEW HX330L 39K9-12100 Swing Reduction Gear?
- Direct-fit compatibility: Engineered to match original specifications, it seamlessly integrates with HX330L excavators. No modifications are needed for quick, hassle-free installation, significantly reducing replacement downtime.
- Precision control: Features high-precision gear machining and optimized torque distribution, ensuring smooth swing movement, accurate positioning, and minimal vibration during rotation.
- Rigorous quality: Undergoes 15+ strict quality tests (including gear hardness checks, torque endurance trials, and noise level verification) to meet industry standards, ensuring stable performance in harsh working conditions.
- Professional support: Backed by a dedicated technical team offering 7×24 online assistance, including installation guidance, lubrication protocols, and troubleshooting, with an average response time of <2 hours.
- Cost-effective reliability: Delivers OEM-level performance at a competitive price, with an extended service life that reduces long-term replacement costs by up to 20%. Enhanced durability minimizes unplanned downtime, maximizing operational uptime.
About SPARKLING MACHINERY:
- Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.
Get In Touch:
- Replace your failing ECU confidently. Contact SPARKLING for pricing, lead time, and technical support — restore optimal machine control quickly and reliably.
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📦 Packing
1. Packaging methods: Carton box + Wooden case/Pallet + Anti-rust treatment
2. Export-standard packaging to ensure safety during transportation
3. Custom packaging available upon request
4. Dimensions and weight can be provided for freight calculation
🚚 Shipping
1. Available shipping methods: Sea freight, Air freight, Express delivery (DHL, UPS, FedEx, etc.)
2. LCL (Less than Container Load) and FCL (Full Container Load) options are supported
3. For Russian clients, we can introduce the forwarder agent to you
4. Delivery time: Ships within 1-3 working days after payment (for items in stock)
💳 Payment
1. Accepted methods: T/T, Bank Transfer, PayPal, Alipay, WeChat Pay, Western Union
2. Deposit + balance payment available for large or custom orders
3. Flexible payment options—feel free to contact us for details
📌 Frequently Asked Questions (FAQs)
Q: Which excavator models is this part compatible with?
A: This product is compatible with major brands such as CAT, KOMATSU, HITACHI, and more. Custom specifications are also available.
Q: How can I make sure I’m selecting the correct part?
A: You can send us a photo of the old part, part number, or your excavator model, and we will help you confirm the right match.
Q: Is there a warranty for this product?
A: Yes, we offer a 6-month quality guarantee under normal use.
Get a free quote
We are committed to producing the highest quality products at the most competitive prices. Therefore, we sincerely invite all interested companies to contact us for more information.
Contact us
Email: ranroswang@hksparkling.com
Wechat: +86 136 0901 0879
Skype: foreverlucia1
WhatsApp: +86 136 0901 0879
Address: No. 514-515, Hulin Road, Tianhe District, Guangzhou, China.