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Eye Bolts Products (Ring and Lifting Ring)

Eye Bolt Products (Ring and Lifting Ring)

 

Material:
Material for Ring: 34CrNi1MoA, 34CrNi1Mo, 34CrNi3Mo
Material for Lifting Ring: 20Cr2Ni4E

Standards:
The ring meets the standards: API Spec 8C-2012 5th Edition (including Errata 2) and GB/T19190.
Capacity: 350 pairs/year;
Delivery cycle: standard Ring 25 days, non-standard Ring 30 days.
The lifting ring meets the standards: API Spec 8C2012 5th edition (including Errata 2) and GB/T19190.
Capacity: 350 pieces/year,
Delivery cycle: standard Lifting Ring 25 days, non-standard Lifting Ring 30 days.

Eye Bolts Products Type:

Mechanical Property:

Productos de cáncamo (anillo y anillo de elevación)
Material:
Material para anillo: 34CrNi1MoA, 34CrNi1Mo, 34CrNi3Mo
Material para el anillo de elevación: 20Cr2Ni4E

Normas:
El anillo cumple con los estándares: API Spec 8C-2012 5ª Edición (incluso con Errata 2) y GB/T19190.
Capacidad: 350 pares/año;
Ciclo de entrega: anillo estándar 25 días, anillo no estándar 30 días.
El anillo de elevación cumple con los estándares: API Spec 8C2012 5ª edición (incluida Errata 2) y GB/T19190.
Capacidad: 350 piezas/año,
Ciclo de entrega: anillo de elevación estándar 25 días, anillo de elevación no estándar 30 días.

Προϊόντα Eye Bolt (δακτύλιος και δακτύλιος ανύψωσης)
Υλικός:
Υλικό για το δαχτυλίδι: 34CrNi1MoA, 34CrNi1Mo, 34CrNi3Mo
Υλικό για την ανύψωση δαχτυλιδιού: 20Cr2Ni4E

Πρότυπα:
Ο δακτύλιος πληροί τα πρότυπα: API Spec 8C-2012 5th Edition (συμπεριλαμβανομένου του Errata 2) και GB/T19190.
Χωρητικότητα: 350 ζεύγη/έτος.
Κύκλος παράδοσης: τυποποιημένο δαχτυλίδι 25 ημέρες, μη τυποποιημένο δαχτυλίδι 30 ημέρες.
Ο δακτύλιος ανύψωσης πληροί τα πρότυπα: API Spec 8C2012 5th edition (συμπεριλαμβανομένου του Errata 2) και GB/T19190.
Χωρητικότητα: 350 τεμάχια/έτος,
Κύκλος παράδοσης: τυπικός δακτύλιος ανύψωσης 25 ημέρες, μη τυποποιημένος δακτύλιος ανύψωσης 30 ημέρες.

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Nickel based High-temperature Alloy Forgings

Nickel Based High-Temperature Alloy Forgings

Superalloy forgings manufactured to your specification, certified to the heat.

Nickel-based superalloy forgings are supplied for service where a component must hold its strength and its shape while working at elevated temperature — under load, under thermal cycling, and often in an environment that attacks the surface as well.

Typical products and materials: superalloy materials for gas turbines, Inconel 718 forgings.

Why Forged, Not Cast

For a component that works hot, the manufacturing route is a material decision rather than a cost decision.

  • Grain flow follows the part. Forging works the metal so the grain structure runs along the shape of the component rather than randomly, which is what gives a ring or a disc its strength in the direction it is loaded.
  • Soundness is inherent to the process. High-temperature service is unforgiving of internal discontinuities; a forging does not carry the solidification-related defects that a casting can.
  • The section can be worked, not just filled. Mechanical working refines the structure in a way that heat treatment alone cannot.

Where a geometry is too complex to forge to shape, it is commonly forged to a near-net preform and finished by machining.

Inconel 718 Support Ring — Chemical Composition

Inconel 718 is a precipitation-hardening nickel-chromium alloy. Niobium is the principal hardening element, with molybdenum contributing solid-solution strengthening, and titanium and aluminium forming the strengthening precipitates. Chromium provides oxidation and corrosion resistance.

Element Requirement (% by weight)
Carbon (C) 0.012 – 0.036
Manganese (Mn) ≤ 0.35
Silicon (Si) ≤ 0.35
Phosphorus (P) ≤ 0.015
Sulfur (S) ≤ 0.0010
Chromium (Cr) 17.00 – 19.00
Nickel (Ni) 52.00 – 55.00
Molybdenum (Mo) 2.80 – 3.15
Niobium (Nb) 5.20 – 5.55
Tantalum (Ta) ≤ 0.10
Titanium (Ti) 0.75 – 1.15
Aluminium (Al) 0.35 – 0.65
Cobalt (Co) ≤ 1.00
Copper (Cu) ≤ 0.30
Boron (B) ≤ 0.006
Iron (Fe) 16.00 – 19.00

Values are those of the applicable procurement specification, which is tighter than the general ASME SB 637 range in several elements. Composition is certified per heat against this specification.

Mechanical Properties of Inconel 718 Support Ring (ASME SB 637)

ASME SB 637 covers nickel-chromium-niobium-molybdenum alloy (UNS N07718) in the form of bar, forgings and forging stock. Mechanical properties under this specification depend on the heat-treatment condition, so the condition is part of the specification — not a manufacturing preference to be settled later.

Test temperature Yield strength σs
0.2% offset (MPa)		 Tensile strength σb
(MPa)		 Elongation A
(%)		 Reduction of area Z
(%)		 Hardness
(HB)
Ambient (room temperature) ≥ 1035 ≥ 1240 ≥ 12 ≥ 12 ≥ 331
650 °C ≥ 860 ≥ 965 ≥ 12 ≥ 12 Not specified

Values are minimums as stated. Hardness is not specified at 650 °C.

Grade Equivalents

Inconel 718 is referenced under several numbering systems. They are commonly treated as interchangeable, but the composition ranges and acceptance criteria are not identical across every system, so an equivalent should be confirmed rather than assumed.

Designation system Inconel 718 Inconel 625
UNS N07718 N06625
EN numeric 2.4668 2.4856
Composition designation NiCr19NbMo NiCr22Mo9Nb

Equivalents are commonly cited; composition ranges and acceptance criteria are not identical across every system.

Where a drawing specifies an equivalent grade, the basis of the equivalence is confirmed in writing before production — whether the match is on composition, mechanical properties, heat-treatment condition, or service performance.

Machining & Handling

Inconel 718 work-hardens during cutting. Cutting parameters, tool condition and the condition of the material being machined all affect the result, and machining is therefore planned rather than improvised: which condition the part is machined in — solution-treated or aged — is decided from the specification and the required final properties.

Documentation Available

  • Mill certificate to the applicable specification, traceable to heat number
  • Heat-treatment records retained against the part
  • Non-destructive examination where the specification requires it
  • Dimensional inspection report issued per shipment

See also: NDT (Non Destructive Testing) service

Enquiry Checklist

  • Drawing or 3D model, and the specification it is made to
  • Grade and heat-treatment condition required
  • Quantity
  • Examination and certification requirements
  • Where no drawing exists yet — a new design, or an existing part without usable documentation — the duty the part has to perform: temperature range, load case, cycling frequency, and the environment it works in. Where you are replacing an existing part, how it wears in service is useful additional input

Ready to Discuss Your Next Project?

Share your drawings, specification or the operating conditions the part has to survive.

Submit Your Drawing → Contact Engineering Team

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Spiral Bevel Gear

Spiral Bevel Gear
Spiral Bevel Gear

Spiral bevel gear is a common part of mechanical transmission, but also an indispensable part of mechanical equipment, relatively difficult and complex process manufacturing, so we use advanced alloy steel 18CrNiMo7-6, more robust and durable, so that its precision level reached DIN3965 5-10.

Spiral bevel gear as the most important part of the transmission device, its quality and performance has been a point of great concern to people, for the traditional spiral umbrella design, with large noise, low efficiency, short life and many other problems, often affect the normal use of mechanical equipment. In view of this situation, the materials used and the design process of the gear have been greatly improved. Our spiral bevel gear adopts high grade alloy steel materials and manufacturing process, so that the transmission efficiency, noise control, service life and other aspects have been greatly changed, but also improve the performance of mechanical equipment and operation stability, for the user with a better experience.

Although Spiral bevel gears are widely used in mechanical equipment, due to high transmission efficiency, transmission stability, good carrying capacity and compact design structure, the equipment is more efficient during operation, and it also has a large savings in energy and space. This is also very high requirements for the manufacturing process, and it is very complex, but the precision of the product is also very high. The requirements for the manufacturing process are also very high and complex, with the following steps:

Design: Before processing, to determine the module of the gear, the number of gear, gear shape, pressure Angle parameters, etc., but also consider the functional requirements of the gear, transmission ratio, working environment and other factors.
Roughing: The first gear roughing, including turning, milling and other processes. At this stage, the shape of the gear is mainly processed into a preliminary shape.
Heat treatment: Heat treatment of the gear after rough machining, usually including quenching and tempering. Heat treatment can increase the hardness and strength of gear and improve its mechanical properties.
Precision machining: After heat treatment, precision machining of the gear, including grinding, hobbing and other processes. This step improves the precision and surface quality of the gear.
Detection and quality control: After the spiral bevel gear is processed, strict detection and quality control should be carried out. This includes checking the size, profile, surface quality, etc. of the gears to ensure that they meet design standards and customer requirements.

Spiral bevel gear manufacturing is more complex, so the need for precision equipment and technology, suitable processing methods and strict quality control, in order to produce high-quality gear to meet the real needs of customers.

In conclusion, choosing spiral bevel gear, quality is necessary, but also consider its performance, which will affect transmission efficiency and stability, carrying capacity, service life, SMI has nearly 30 years of customized processing experience, if you are interested, welcome to contact our professional team here.

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Slewing Bearings

Slewing Bearings
Slewing Bearings

Slewing support bearings consist of an inner ring and an outer ring, one of which usually contains a gear. Together with the connecting holes in the two rings, they enable optimized power transmission and quick and easy connections between adjacent machine components. The raceways of the bearings work together with the rolling parts (as well as the cage or spacer) to withstand one-way loads or combined loads in any direction.

SMI manufactures a wide range of standard and custom support slewing bearings with an outer diameter of 0.1 – 16 m to meet the specific application needs of our customers.

Slewing Bearings -2
Slewing Bearings -2

SMI products are widely used in: precision machine tools, machining centers, industrial robots, harmonic reducers, precision spindles and turntables, CNC welding machines, automobiles and automobile production lines, electronic and electrical equipment lines, building materials machinery, high-voltage switches, high-wire rolling mills, textile machinery, oil and gas industry, ports, mining lifting wire rope industry; automobile tire radial braiding machine; wire rope braiding machine; silicon wafer cutting machine; Industrial (automotive and household appliances) coating lines and other fields.

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Petroleum Machinery Mixer Bevel Gear

Petroleum machinery mixer bevel gear, a key mechanical parts in the petroleum industry, made of metal, such as steel, or alloy steel, to ensure its sufficient strength and wear resistance, we provide gears will be customized according to your mixer design, to ensure that the size, number of teeth and other parameters perfectly fit your equipment.
1) Our Petroleum machinery mixer bevel gears are robust, strong and torque-intensive
2) High transmission efficiency and smooth, long life, noise and vibration reduction
3) Tooth surface carbonizing and quenching, strong wear resistance, high bearing capacity
4) In order not to affect the normal operation of the mixer, regular maintenance is necessary to reduce the wear and tear of the equipment

The petroleum machinery mixer gear provided by SMI has efficient power transmission and durable operation performance, we use high-quality materials and precision machining to ensure the high quality of the gear, to ensure that the mixer can withstand high-speed rotation and heavy load, so that the mixer can also maintain normal operation in harsh environments.

The tooth surface of the worm is precision grinding, and the tooth Angle is detected by the optical projector, which greatly improves the transmission accuracy, reduces the noise and prolongs the service life.

We can tailor it to your blender model, or requirements, to ensure suitable and high-performance operation for your equipment.

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SMI R-Series weight distribution hitch with sway control system

SMI R-Series weight distribution hitch with sway control
SMI R-Series weight distribution hitch with sway control system

SMI R-Series weight distribution hitch with sway control system
Features:
• Evenly distributes tongue weight to the axles of tow vehicle and trailer for stability and control
– Creates a more level ride for both tow vehicle and trailer
• Friction sway control reduces sway caused by winds, curving roads and sudden maneuvers
– Adjustable tension lets you create the perfect degree of control and resistance
– Integrated handle engages and disengages the system
– Removable – just release 2 spring locking pins
• Round, forged steel spring bars are tapered for superior flexibility
– Bars flex appropriately over uneven terrain for a controlled, even ride
• Adjustable spring-bar tension – just switch links in lift chains to fine-tune
• Desired tilt of head and system is achieved by adding washers to a rivet inside the weight-distribution head
• Solid steel shank is powder coated for rust protection
Specs:
• Tongue weight: 700 lbs to 1,000 lbs
• Gross towing weight: 10,000 lbs
• Fits: 2″ x 2″ trailer hitch receivers rated for use with a weight distribution system
• Shank length: 12-1/2″
• Maximum rise: 6″ from top of hitch receiver opening
• Maximum drop: 2″ from top of hitch receiver opening
• Hitch ball dimensions:
– Diameter: 2-5/16″
– Shank length: 2-1/2″
– Shank diameter: 1-1/4″