I. Product Overview

This multi-step stepped connecting rod is made of 6061 aluminum alloy bar material, precision turned into shape through CNC, with the main straight rod, limiting step, conical guide head, and tail thread all cut as an integrated unit without splicing. The conical tip at the front reduces the difficulty of assembly alignment, the middle annular step accurately limits the insertion depth, and the end external thread is locked by a nut for firm fixation. The aluminum alloy material is lightweight with high processing accuracy, suitable for lightweight automated equipment and precision detection fixtures.

Support selection of various materials such as aluminum alloy, carbon steel, and stainless steel. Rod diameter, total length, taper, and thread specifications can be customized according to customer drawings and physical samples. Both small batch trial production and long-term mass supply are available. The straightness of finished products and dimensional specifications are inspected item by item.

Part Two: Core Highlights of Craftsmanship

1. Solid rod material, CNC integrated molding, excellent concentricity and straightness.
   The entire rod assembly is cut and formed in one go, without welding or segmented assembly. This ensures long-term reciprocating assembly without eccentric swing, guaranteeing the precision of equipment assembly.
2. Conical guide end, quick alignment assembly
   The front-end smooth conical guide rod is smoothly inserted into the installation hole, significantly reducing the difficulty of manual assembly, and is suitable for automated batch assembly scenarios.
3. Central positioning steps, unified assembly stroke
   Integrated circular step serves as a limit benchmark, effectively preventing over-insertion, ensuring consistent assembly dimensions of multiple sets of equipment, and reducing debugging time.
4. Tail end precision external thread, firm and reliable locking
   The thread profile is uniform and full, with a high degree of match with standard nuts, not prone to slip during multiple disassemblies, and stably achieves tight connection of parts.

Section 3: Optional Customizable Raw Materials

1. 6061 Aluminum Alloy (Recommended)
   Lightweight, easy to machine, high cost-performance, the first choice for light automation equipment and testing instruments, supports anodizing to enhance hardness.
2. 45# Carbon Steel
   Higher load-bearing capacity, quenched and tempered, suitable for heavy-duty tooling machinery connection conditions.
3. 304 Stainless Steel
   Anti-rust and corrosion-resistant, suitable for working environments with humidity and slight corrosive media.
4. H62 Brass
   Electrical module connection components with both conductive properties and the need for electrical current conduction.

4. Optional Surface Treatment Processes

• Anodized aluminum precision turning: Basic general scheme, lightweight assembly parts
• Hard Anodizing: Enhances the surface hardness of aluminum alloy, wear and scratch-resistant, suitable for frequent sliding assembly
• Mirror polishing: Appearance requirements for exposed parts

V. Applicable Application Scenarios

✅ Non-standard automated production line fixture positioning rod
✅ Various precision testing instrument parts support shaft
✅ Light machinery equipment module locking connection shaft
✅ Functional test outfit guide assembly rod
✅ Internal positioning and fastening fittings for electronic device casings

Six, Core Product Advantages

1. CNC precision processing, all non-standard adjustments are available for rod diameter, length, taper, and thread specifications.
2. Guided + limited + screw lock integrated in one, simplifying the number of parts in the whole machine
3. Aluminum alloy lightweight design, reducing overall equipment load, with less movement resistance.
4. A variety of materials and surface finishes are available, suitable for different working conditions such as lightweight, wear-resistant, and anti-corrosion.
5. Single piece sample available, stable delivery time, capable of long-term bulk supplysupporting facilities

Q&A on Procurement Common Questions

Q1: Can the ends be swapped to have one threaded and the other conical?
A: Yes, the end style and stair position can be freely adjusted, and supports processing of irregular end heads.
Q2: Aluminum alloy frequent insertion and removal wears out quickly, what surface treatment is recommended?
A: It is recommended to use hard anodizing treatment to significantly enhance the surface wear resistance.
Q3: Can the thread be changed to an internal thread structure?
A: Support, both external threads and blind hole internal threads can be turned into one piece.
Q4: Can you supply matching sleeve and nut sets for bulk shipment?
A: Support, the connecting rod and its matching fasteners are produced simultaneously to ensure assembly fit accuracy.