Ounuo Machinery (Zhejiang Ounuo Machinery Co., Ltd.) is the primary precision manufacturing and research powerhouse behind OYANG Group, operating alongside ALLWELL as the group’s global technical export conduit. Founded in 2006 and located within an expansive 130,000 m² smart manufacturing base, Ounuo engineers and fabricates the core converting platforms distributed worldwide under the unified OYANG brand banner. By pairing German-grade assembly tolerances with continuous in-house machining on Japanese MAZAK and OKUMA 5-axis CNC centers (≤ 0.015 mm tolerances), Ounuo converts over 1,000 automated paper and nonwoven bag lines annually with certified CE, ISO9001, and CNAS national lab quality assurance.
The Triad Entity Structure: OYANG, OUNUO, and ALLWELL Clarified
International buyers frequently ask about the precise legal and operational relationship between Ounuo, Allwell, and OYANG. Rather than disconnected entities, these three names represent the unified manufacturing, engineering, and global trade wings of a single industrial group:
1. Ounuo Machinery (The Manufacturing Core)
Zhejiang Ounuo Machinery Co., Ltd. owns and operates the physical 130,000 m² smart manufacturing base. It manages heavy CNC machining, mechanical assembly lines, structural annealing furnaces, and electrical automation R&D.
2. ALLWELL (The Export & Trade Division)
Allwell operates as the specialized global trade channel under the group. It coordinates international logistics, multilingual client commissioning, overseas customs clearance, and global cross-border transactions.
3. OYANG Group (The Global Master Brand)
OYANG serves as the centralized umbrella corporate brand. All high-speed converting machinery, rotogravure presses, and sustainable paper-forming lines are unified and marketed globally under the OYANG trademark.
Video 1: Executive walkthrough explaining the manufacturing roles, history, and integration of Ounuo, Allwell, and OYANG Group.
The Physics of Machine Rigidity: Stress Relief & Dynamic Stability
In high-speed paper bag and nonwoven box bag machinery, structural chassis vibration is the fundamental cause of web tension flutter, ultrasonic horn cracking, and premature bearing failure. Operating continuously at 100 to 220 bags per minute applies dynamic cyclic shock loads across side wall panels:
Ounuo Machinery eliminates frame distortion by fabricating side plates from heavy HT250 gray cast iron subjected to dual thermal stress-relief annealing and natural aging. To ensure that sympathetic mechanical resonance cannot occur during line ramp-ups, the chassis natural frequency is mathematically engineered to reside far outside the operational excitation band:
Where fn is the natural structural frequency, k is the physical stiffness of the casting frame (governed by elastic modulus and structural ribbing), and m is the distributed mass. By optimizing mass distribution m on MAZAK 5-axis lines, Ounuo shifts resonance modes beyond 250 Hz, preserving ±0.2 mm converting alignment.
For detailed comparative benchmarking against other global machinery manufacturers, review our engineering analysis on best non woven bag making machine chassis benchmarks: OYANG vs. global brands.
Inside Ounuo’s 130,000 m² Smart Manufacturing Base
Unlike trade brokers who outsource component machining to regional job shops, Ounuo operates an end-to-end digital machining ecosystem governed by an enterprise Manufacturing Operations Management (MOM) platform:
Figure 1: Automated Japanese MAZAK flexible production cell milling converting machine wall panels at Ounuo’s Pingyang campus.
Figure 2: Japanese OKUMA horizontal machining center boring drive shaft housings to tolerances of ≤ 0.015 mm.
By executing milling, boring, and tapping operations in single-clamping configurations on Japanese MAZAK and OKUMA 5-axis CNC machining centers, Ounuo maintains a cumulative datum tolerance of ≤ 0.015 mm across bearing seats, guide ways, and rotary shafts. This precision prevents gear backlash, eliminates ultrasonic horn misalignment, and extends machine service life beyond 15 years.
Quality Accreditations: Global Certification Matrix
Every production series engineered by Ounuo undergoes 72 hours of uninterrupted dry-cycle burn-in testing and metrological inspection before export clearance:
| Certification / Standard | Scope & Technical Compliance | Accreditation Certificate |
|---|---|---|
| SGS CE Machinery Directive | Verifies full compliance with European Union machinery safety directives, electrical EMC standards, and emergency interlocks across all converting lines. | |
| ISO9001 & IAF Management | Standardizes quality management protocols across raw casting inspection, CNC tolerance auditing, final assembly, and electrical harnessing. | |
| CNAS National Laboratory | Certifies national high-tech enterprise status, internal metrology calibration, metallurgical defect inspection, and continuous R&D capabilities. | |
Flagship Machinery Engineered by Ounuo for OYANG
Ounuo Machinery’s continuous mechanical engineering innovations power OYANG’s globally recognized high-speed converting platforms:
Figure 3: The TECH 23 Fully Automatic Nonwoven Box Bag Making Machine delivering continuous 90–100 bags/min velocity with patented 90-second automated motorized mold changes.
Figure 4: The TECH-18 Roll-Fed Paper Bag Machine running up to 220 bags/min with full servo-automated size changes via recipe recall in under 2 minutes.
Video 2: Plant tour inside Ounuo Machinery’s intelligent workshop, demonstrating 5-axis CNC machining, structural assembly, and automated quality testing.
Related Technical Guides & Converting Resources
- → Non Woven Box Bag Machine Price & Specs: Review 15-axis to 46-axis servo configurations, machine castings, and official quotes for 3D box bag lines.
- → Best Non Woven Bag Making Machine Benchmark: OYANG vs. global builders on HT250 cast iron frames, EtherCAT servos, and 5-year TCO economics.
- → Non-Woven Bag Making Machine Cost & Buying Guide: Complete industrial price breakdown, landed cost calculations, and plant selection matrices.
Frequently Asked Questions (FAQ)
What is the relationship between Ounuo Machinery and OYANG Group?
Ounuo Machinery (Zhejiang Ounuo Machinery Co., Ltd.) is the core manufacturing and heavy engineering division of OYANG Group. Ounuo manages the 130,000 m² production campus, CNC machining lines, and automated assembly operations, with all equipment marketed and supported globally under the unified OYANG brand.
Where is Ounuo Machinery located?
Ounuo Machinery’s 130,000 m² smart manufacturing base is located in Pingyang County, Wenzhou City, Zhejiang Province, China. The facility houses multi-axis CNC machining bays, heavy assembly workshops, an automated 3D logistics warehouse, and advanced R&D testing centers.
What CNC equipment does Ounuo use to process machine parts?
Ounuo Machinery utilizes automated Japanese MAZAK and OKUMA 5-axis CNC machining centers. This high-precision equipment mills machine side frames, bearing bores, and shafts to geometric tolerances within ≤ 0.015 mm, eliminating harmonic vibration during high-speed bag converting.
Does Ounuo Machinery hold CE certification for international markets?
Yes, all bag making machines, slitting lines, and auxiliary packaging equipment engineered by Ounuo are fully certified under SGS CE directives, ISO9001 quality management standards, and CNAS national high-tech laboratory accreditation.