FAQs

Whether Have Standard Geometric Tolerance? What Is The Best One We Can Do?

The Following Table Is The Standard Geometric Tolerance For General Product

Deviation Types Check Position General Dimension Deviation Value
Parallelism  ∥ Processing Surfaces Any Block ≥15*15 , Disc , Circular≥Φ15 , Two Surfaces≤0.1mm; Block <15*15 , Disc , Circular<Φ15 , Two Surfaces≤0.05mm
Perpendicularity   ⊥ Processing Surfaces Any General Disc , Block 90°±0.5° , Block ≤4*4*4mm , Disc ≤Φ3.5mm , Circular , Radial90°±1
Coaxially  ◎ Processing Surfaces Any Tolerance R±0.1 , ◎≤0.2mm, Tolerance R±0.05 , ◎≤0.1mm
Symmetry Processing Surfaces Any General Products 0.15mm , Special Products 0.2mm
Flatness Processing Surfaces Any Block ≥15*15 , Disc≥Φ15 , ≤0.1mm , Circular≥Φ15 , ≤0.15mm

Block <15*15 , Disc≤0.15 , ≤0.05mm , Circular≥Φ15 , ≤0.1mm

Cylindrical

 

Processing Surfaces Any ≥Φ20mm: 0.1mm ; ≤Φ20mm: 0.05mm
Curve Profile Processing Surfaces Any R±0.1,≤0.1mm , R±0.05,≤0.05mm

Remark: Geometric Tolerance According To The Stander GB2828, AQL0.65(S-4) To Sample.
We Will Determine The Best Geometric Tolerance According To The Specific Products. Pls Contact With Your Contact Person When You Have Inquiry.

The Package Methods, And Which One Is The Best To Protect The Goods?

Our Main Package Methods Are Including General Bags Packing, Plastic Tube Packing, Vacuum Packing, And Skin Packing. At The Same Time, We Can Order The Custom-Made Packing Method According To Customer’s Requirement.
All The Package Methods Can Protect The Goods. The Reason Why They Have Different Methods, Firstly, It Is Related With The Mode Of The Customer Use. Secondly, It Is Related With The Dimension Of Products, For Example: It Could Not Use The Plastic Tube Packing, Or Vacuum Packing. Which Package Is Much Suitable Depend On The Dimension Of The Products.

How To Inspect The Performance Of Roughcast?

The Way To Inspect The Performance Of Roughcast Is As Below ① To Sample The Materials Located In The Front, Middle And Behind Of Whole Sintered Oven. ②Take The Test Sample Column (The Dimension Is Around D10*15mm) In The Block Roughcast.③ Get The Result To Use The Automatic Magnetic Tester.④ Analysis All Data, Then Determine The Material Are Qualified Or Not.      

What Is The Maximum Characteristic For The Smco Magnet?

The Maximum Cahracteristic For Smco Magnet Is YXG32,And Its Characterisitc Is: Br: 11,000-11,300Gs; BHc: 10,200-10,600Oe; IHc≥ 15,000Oe; (BH)Max: 29-32MGOe. 

Could You Produce The Magnet Which Is In Unsaturated Magnetized Condition?
No, Because  
  ①The Performance Values Of Each Batch Of Magnets Will Fluctuate Within A Certain Range.  The Voltage Is Difficult To Be Adjusted Under The Unsaturated Magnetized Condition.
  ②The Performance Is Unstable When The Magnet Are Unsaturated Magnetized. And It Will Change While Using.
Why SmCo5 Is Much Expensive Than Sm2Co17?

Because Cobalt Content In SmCo5 Is More Than Sm2Co17, While Cobalt Is Scarce In China, We Need To Import Raw Materials, The Price Is Very Expensive. Although The Magnetic Energy Product Of SmCo5 Is Lower Than Sm2Co17, The Price Is Higher Than Sm2Co17.

Whether Samarium Cobalt Magnets Require Plating Or Not? What Kind Of Plating Available?

The Samarium Cobalt Magnets For Its Better Corrosion Resistance, Does Not Require Plating Under Normal Circumstances, However, The Product Will Be Required Plating, When Some Customers Use Samarium Cobalt Magnet As The Outer Parts, Or In Some Harsh Application Environment.

 We Can Provide Plating Types As Below: Zinc, Nickel, Silver, Copper, Chemical Nickel, Nickel + Copper + Nickel, Nickel + Gold, Nickel + Tin, Epoxy .Etc.

Whether Samarium Cobalt Magnets Will Rust Or Not?

Samarium Cobalt Magnets Will Rust Since Its Composition Contain Iron Element. However, It Is Not Very Serious Rust Phenomenon Compared With NdFeB Magnets, As SmCo Magnets Contain Lower Iron Element Than NdFeB. When SmCo Magnets Are Used In Sea Water, It Will Produce Some Rust Points On Surface , But Does Not Affect Its Performance And Application.

How To Deal With Customer Complaints?

After Receiving Customer Complaints, Sales Will Immediately Fill Out The Customer Complaint Information At The Top Of The " Customer Feedback Disposal Record ", Identified The Reasons By The QC Department And Fill Out Comments At The Bottom Of The " Customer Feedback Disposal Record," Then Reply Customer With Disposal Suggestion And 8D Report If Necessary.

Why Can Not Generally Determine The Magnetic Properties By The Surface Gaussian(Surface Gaussian Value) But Only As A Basic Basis?

Because The Surface Gaussian Value Is One Point Value Measured By The Gauss Meter In Contact With Magnet Surface. Measuring Points Can Not Cover The Entire Product Surface, So It Is Not Correct To Take The Value Of One Point To Measure The Value Of Entire Surface. Moreover, About 2%  Error Exist In Each Gaussian Meter. Also In The Measurement Process, It Exist Error As We Can Not Find The Two Coincident Points In The Same Product .Therefore, The Surface Gaussian Value Is Only A Basic Magnetic Reference, That Can Not Be Used To Determine Product Performance. Typically, We Just Take The Magnetic Flux Performance To Estimate Eligibility Of The Product.

Why Are Some Unfilled Corners On Products?

The Physical Properties Of Samarium Cobalt Magnets Are Very Brittle (Even Brittle Than Glass), Even By Tiny Force It Will Cause A Little Chippings Or Unfilled Corners On The Edge Part Of The Magnets. It Requires More Than A Dozen Procedures To Make A Product, That It Is Difficult To Avoid The Unfilled Corners In Processing Or Working In The Inspection Process. So, It Must Be Kept In Strict Attention And Careful Protection, When Processing, Testing, Transportation, Or Application, Nevertheless, Small Unfilled Corners Can Not Be Avoided Completely.

What Is The Different Between SmCo5 And Sm2Co17?

① The Way Of Representation Is Different: We Use YX To Represent The SmCo5, And YXG Represent Sm2Co17. ② Different Components: The Main Components Of SmCo5 Include Samarium, Cobalt, Pr. Or Just Pure Samarium, Cobalt; The Main Components Of Sm2Co17 Include Samarium, Cobalt, Copper, Iron, And Zirconium; ③Different Physical Characteristics: Such As The Maximum Operating Temperature Of SmCo5 Is 250 ℃; And The Maximum Operating Temperature Of Sm2Co17 Is 350 ℃. But The Physical Specification Of SmCo5 Is Better Than Sm2Co17, SmCo5 Is Much Easy To Machine While Sm2Co17 Is More Brittle.

Why Did Delay For Delivery?

It Have Many Factors For Delaying For The Delivery Date, As The Performance, The Dimension And The Shape Of Magnet. 1.Performance Factor, Unconventionality Performance, As The LTC(YXG22), Low Coercivity Product ( Have The “L” In The Grade Name) And Other Uncommon Used Performance, Which Grade Need To Be Re-Formulation For The Material Ratio, Melting, Milling, Pressing, Sintering And Sampling Process, And The Technics Is More Complex, Even The Variety Of Climate Will Affect The Performance, And Couldn’t Come To The Standard, Then Need Remake It. This Is Only The Problem In Roughcast Process, Maybe Have Many Other Problems In The Machining Process, So Will Delay For The Delivery Time. 2.Dimension Factor: Too Large And Small Dimension, Special Ones Is Hard For Machining, Too Small Dimension Ones Is Hard For Tooling And Lost Frequently, Very Hard For The Estimating The Rate Of Scrap And Lost, Too Large Dimension Ones Will Be Chapped Usually, These Products Have The High Probability Of Remaking And Complementarity. 3.Shape Factor: Irregular Shape Product,  Especially The Magnet Have A Hole In It, Will ;Have The Chipping And Cracking In Machining As The High Brittle And Stress In Machine Process. It Will Also Delay For The Delivery. It Also Have Other Factor To Affect The Delivery Time, As Some Product Maybe Need Special Tool, Which Will Have A Process Of Testing In General. In Addition, Sometime Maybe Have The Small Mistake For The Machining, It Will Also Influence The Delivery Date.

What’s The Delivery Time?

It Accord To The Characteristic,Size,Shape And Quantity.Usually The Delivery Time Is: Normal Block And Round(Normal Characteristic,Normal Size)5000pcs: About 15-20days; 10000pcs:about 20-25days Normal Ring And Irregular Shape(Normal Characterisitc,Normal Size)500pcs:about 15-20days;<=5000pcs:about 30days If You Need The Irregular Shape And Big Quantity,Pls Confirm The Delivery Time Before Any Order.

Which Payment Term Could Be Accepted?

Cash, T/T And L/C, Generally Is The T/T. The Below Situation Need To Deliver The Goods After Getting The Payment, The First Time Cooperation, Few Of Quantity And Few Of Order, After Have Mutual Understanding And Frequent Order We Could Consider The Payment Monthly.          

Why Charge For The Sample?

(1). SmCo Magnet Is Expensive, And It’s The Custom-Made Product. Haven’ T The Stock Samples On Hand , It’s Different With The Standard Parts. In General, The Sample Need For Series Process Of Mechanical, And The Process Is Complex, Maybe Some Samples Need For More Than Dozens Of Process, And Take About One Week Time. It’s The Same Process For The Sample Production And Volume Production, From The Received Order, Review, Planning, Choice The Appropriate Roughcast To The Dozens Of Process Of Mechanical. For Every Process We Require The Inspection To Semi-Finished Products, Fill In The Flow Card And The Quality Record. Then The Product Need For Cleaning And Finished Product Inspection, Then Do The Test Report. In Final The Product Be Packaged And Delivered. So You Could Know The Production Cost Of The Several Samples According To It. (2). It’s Need More Time For Adjusting The Instrument And Preparing For The Tooling For The  Production Process Of Samples, Waste Larger Of Resources, At The Same Time Affect The Normal Production Badly. If The Sample Have The Requirement Of Plating And Chamfering, And The Cost Will Larger, In General ,The Chamfering Need About Dozens Of Hours, And The Same Time Of Plating. In Normal, The Bucket Of Plating Process Could Encase About Several Kg Product, For The Sample Only Encase Several Ones, You Could Consider Of The Cost About It. (3). As The Samples Is Only Few Of Volume, So Need To Invest More Than 200% Of Materials Sometimes ; The Technic For Sample And Volume Is Also Different, In General,  The Roughcast Of Volume Will Be Pressed According To The Dimension Of Magnet, But The Sample Need To Use The Inappropriate Ones, Waste Large Of Materials, And Have More Process With The Normal One. It Be Know That The SmCo Materials Is Expensive, The Few Of Difference For The Scrap Rate Will Lead To The Huge Distinction For The Price, Moreover The Difference For The Scrap Rate Is Multiplied. So The Price Of Sample Could Compare With The Volume Completely. (4). It Have Serious Impact For Our Normal Production As The More Kind Of Samples In Past, Have The Badly Affect For Our Human And Materials Resources. If The Company Have About Six Or Seven Hundreds Of Kind Of Samples Every Month, And Produce About 30 Kinds Of Samples Every Day, Every Kind Of Them Have Dozens Of Process, It Will Need How Many Of Worker, Inspector, Administrator For Producing And Operation, And Will Take Them So Much Of Time., At The Same Time Some Machines And Instruments Couldn’t Do The Normal Work.
(5). After A Preliminary Calculation, It Will Be Need About RMB 500 For One Kind Of Sample, Which Volume Price Is Only Several Chiao. So The Charge For The Samples Is Only A Little Part Of Cost, Far Short Of Our Production Costs. Only Charge Few Of Fees, Because We Consider Of The Long-Term Cooperation, And Hope To Get The Volume Order From The Customer, Also Reminding Our Client That It Must Be Deliberate When You Order The Samples.We Hope That You Could Understand Our Detailed Reason For The Charge, Support Us

Could Get The Free Samples?

Because All Of Our Products Is The Special One, And Haven’t The Excess One, So We Must Do The Samples When Our Customer Require For It, And The Production Cost Is Very High. So We Will Charge For The Sample. Unless We Have The Sample In Our Stock, We Will Offer The Free Sample.

How Much Is The Minimum Order Quantity?

As The Sintered SmCo Magnet Is Manufactured With Mechanical Processing, And Don’t Produce With The Mould, So It’s No Minimum Order Quantity In General, In Actual We Could Do It Even If The Order Have One Product.  Only Production Cost Is Different, The Unit Price Of It Is Higher.  

Why Should You Need To Send A Fax Or E-Mail Inquiry, But Not By Way Of Phone?

1)We Need Comprehensive Information From Inquiry So That We Can Offer The Correct Price. By Fax Or Mail, Your Inquiry Provides Detailed Information, Such As: Performance Grade, Tolerances, Quantity, Special Requirements And So On. 2)The Offer Is Made By Calculation, But Not Blurt Out. When You Inform Us With All Information About Products, We Are Not Sure That We Receive The Correct Information, Because Our Memory And Pronunciation Differences Will Effect Accurate Quotation.3)Our Staff May Not Be In Their Seats All Time, If He(She) Answers Your Phone In The Workshop, It Is Possible That She Will Forget Your Inquiry After The Busy Work In Her Seat. While The Fax And E-Mail Are Received Constantly, And Immediately Sent To The Quotation Specialist. So It’s The Best Way By Fax Or E-Mail If You Want To Get Faster Quotation. 4)Fax And E-Mail Can Serve As A Record To Store And Query. After All, The Palest Ink Is Better Than The Best Memory.. It Could Be Documented When We Are Still In Doubt.          

How Long Can I Get The Quotation?

During Working Day Monday To Friday,Normal Size Product Could Get The Quotation Usually Within One Day,Special Product(Which Need Confirm Whether Could Produce Or Not) Need Check Accord To Its Difficulty,Usually Within 3-5 Working Days. During Saturday,Sunday Or Holiday,We’ll Send The Quotation Usually In The First Working Day After Come Back.If There Is Any Urgent Need,Pls Contact Your Contact Person.          

Can I Get A Catalog?

Yes.When You Need The Catalog,Usually We’ll Send The Catalog With Your Goods.If You Are The New Customer Without Any Goods Delivery,You Must Pay The Freight Cost For Catalog.

Is The Magnet Have The Standard Size?

 No,Usualy The Magnet Is Customized.And We Can Support The Customer With A About Size Design Accord To Their Use Sometimes. And Because Of The Limit Of Our Ability,We Can Not Produce All The Product Size,The Available Size Pls Find Our Normal Size And Shape On Website.          

How To Find The Required Magnet

You Can Use Your Magnet Information Compare To The Magnet Information On Our Website,And Find The Magnet Characteristic Of Yours.The Normal Size And Shape On The Website Can Help You To Decide The Size.If You Need More Information,Pls Find Technology Support.

What Is The Highest Performance Of Currently Available Samarium-Cobalt Magnets?

The Maximum Cahracteristic For Smco Magnet Is YXG32,And Its Characterisitc Is: Br: 11,000-11,300Gs; BHc: 10,200-10,600Oe; IHc≥ 15,000Oe; (BH)Max: 29-32MGOe. 

The Package Methods, And Which One Is The Best To Protect The Goods?

Our Main Package Methods Are Including General Bags Packing, Plastic Tube Packing, Vacuum Packing, And Skin Packing. At The Same Time, We Can Order The Custom-Made Packing Method According To Customer’s Requirement.

All The Package Methods Can Protect The Goods. The Reason Why They Have Different Methods, Firstly, It Is Related With The Mode Of The Customer Use. Secondly, It Is Related With The Dimension Of Products, For Example: It Could Not Use The Plastic Tube Packing, Or Vacuum Packing. Which Package Is Much Suitable Depend On The Dimension Of The Products.

What Is The Highest Performance Of Currently Available Samarium-Cobalt Magnets?

The Maximum Cahracteristic For Smco Magnet Is YXG32,And Its Characterisitc Is: Br: 11,000-11,300Gs; BHc: 10,200-10,600Oe; IHc≥ 15,000Oe; (BH)Max: 29-32MGOe. 

The Package Methods, And Which One Is The Best To Protect The Goods?

Our Main Package Methods Are Including General Bags Packing, Plastic Tube Packing, Vacuum Packing, And Skin Packing. At The Same Time, We Can Order The Custom-Made Packing Method According To Customer’s Requirement.

All The Package Methods Can Protect The Goods. The Reason Why They Have Different Methods, Firstly, It Is Related With The Mode Of The Customer Use. Secondly, It Is Related With The Dimension Of Products, For Example: It Could Not Use The Plastic Tube Packing, Or Vacuum Packing. Which Package Is Much Suitable Depend On The Dimension Of The Products.

WANT TO WORK WITH US?


WhatsApp Online Chat !