Certified Refurbished Siemens SIMATIC PLC Systems | S7-300, S7-400, S7-1200 & S7-1500 Ready to Ship

Xi’an Juxinde is your global source for original Siemens automation hardware. We maintain a massive inventory of New, Surplus, and Certified Refurbished PLC modules. Whether you are maintaining legacy S7-300/400 systems or upgrading to the latest S7-1500 TIA Portal technology, we provide reliable, factory-tested components to minimize your downtime. Save up to 50% on CAPEX with zero lead time.

Featured Inventory: Siemens SIMATIC Automation & Control Assets

Browse our comprehensive stock of Siemens industrial controllers. From high-performance CPU modules to versatile digital/analog I/O cards and HMI Comfort panels, every unit is verified for firmware integrity and hardware reliability. Enter your specific MLFB (Order Code) in your inquiry for a precise technical match.

Refurbished Siemens SIMATIC S7-300 Series Products | Certified Spares & Legacy Support
Refurbished Siemens SIMATIC S7-400 Series Products | High-Performance Control & Redundancy Solutions

100% Authenticity

Original Hardware Only: We source 100% genuine Siemens components, verifying serial numbers and original factory labels to ensure you receive authentic SIMATIC hardware.

Rigorous Logic Testing

Functional Integrity: Every PLC module is powered up and tested using Siemens Step 7 or TIA Portal software to verify signal accuracy and logic execution.

Firmware & E-Stand Match

Version Compatibility: We understand the importance of hardware releases (E-Stand). We can match specific versions to ensure seamless integration with your existing system.

Anti-Static Packaging

ESD Protected Shipping: All electronics are packed in industrial-grade anti-static vacuum bags and shock-absorbing materials to ensure zero damage during transit.

Obsolete & Discontinued Spares

Hard-to-Find Specialist: We specialize in sourcing and restoring retired series like S7-300 and S7-400. This provides a critical lifeline for maintaining legacy infrastructure, allowing you to avoid the immense costs and downtime associated with forced, full-scale automation migrations.

Common Inquiries & Expert Insights

Do you provide both New and Refurbished Siemens PLC parts?

Yes. We offer New in Box (NIB), New Surplus (Open box), and Certified Refurbished modules. This allows you to choose the best option based on your project budget and the urgency of your maintenance needs.

Every module undergoes a strict 21-step diagnostic process. We use original Siemens software (Step 7 or TIA Portal) to perform logic-run tests and I/O port verifications, ensuring the hardware is 100% functional before shipping.

We use industrial-grade ESD (Anti-static) vacuum packaging and multi-layer shock-absorption materials. We have extensive experience shipping to Central Asia (Uzbekistan, Kazakhstan) and Africa, ensuring zero damage during long-distance transit.

Request a Customized Quotation & Stock Match

Provide your technical requirements below, and our engineering team will match the best available assets for you within 24 hours.