Rotary Table

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Contract Opportunity

SLAC National Accelerator Laboratory is operated by Stanford University for the Department of Energy. As a management and operating contractor, subcontracts awarded by the Laboratory are not Federal procurements, and are not directly subject to the Federal Acquisition Regulations in 48 CFR. Nonetheless, certain Federal laws, Executive Orders, and regulations may affect our DOE approved purchasing system, as required by statute, regulation, or contract terms and conditions.

AMENDMENT 01

HI,

The following Addendum is being issued for the subject Request for Quotation: 353182 Air Bearing Rotary Table

Answers to Questions:

Fundamental Questions:

What is the customer load moment of inertia?

-See sketch.

• 
  
  
  
  • What is the motion profile? (triangular or trapezoidal motion profile, travel angle, travel time, dwell time, etc.)
  
  
  • -Trapezoidal or smoothest profile, want in the range of 360degs in about 1-4 seconds if at constant velocity. This system will be step-scanned ie: move 0.5deg, ‘dwell’ 0.5sec, repeat for 360deg.
  
  
  • Orientation? Floor mounted, wall mounted, ceiling mounted?
  
  
  • See sketch, pointed up or at 30degs from ‘up’. It will be either position. It will be expected that the rotation axis will have to be re-aligned between this two positions.
  
  
  • What is the environment? Assume just standard lab environment?
  
  
  • Standard Lab Enviroment
  
  
  • What is the 100mm between our rotary service and where they need 40nm runout? We can generally only guarantee from our rotary surface as that is all we control. We don’t control what interfaces between. See sketch & ‘wobble’, Provide some information specific to your system.
  
  
  • Is there any through hole requirements?
  
  
  • It is assume this system has some sort of commutator ring in it’s core and the wires make it out to the rotating surface via some sort of connectors. Other than that, there is no need for any through-holes.
  
  
  • What repeatability and accuracy requirement do you have?
  
  
  • Does the customer have a preferred encoder solution? Absolute or digital?
  
  
  • BiSS encoder. Absolute is preferred. Will trigger DAQ based on this.
  
  
  • Axial and radial runout requirement?
  
  
  • See sketch for these requirements.
  
  
  
  


• Additional questions
  
  
  
  • what is the project timeline? ~ 6 months
  
  
  • Do you have an annual forecast amount? Just two are needed for the two instruments being developed. System will be published in a scientific/instrumentation journal.
  
  
  
  

The bid close date is moved to March 27,2025.

This Addendum modifies the Request for Quotation and must be acknowledged. Failure to acknowledge all addenda could make your proposal non-responsive. Please confirm that the submitted proposal is not changed because of this addendum. If proposal sent is revised because of this, please submit the revised proposal.

The following changes are hereby made to the appropriate documents contained the above-mentioned Request for Quotation (RFQ). All other terms and conditions of the RFQ remain the same.

Thank you very much.

Katherine Jill A. Coh

SCM Commodities Team Lead

SLAC National Accelerator Laboratory

2575 Sand Hill Road

Menlo Park, CA 94025

Tel: 650-926-2770

Email: kcoh@slac.stanford.edu

The follow has been attached for you to complete and review:

1.) (BAA) Buy American Act Certification

2.) Reps and Certs-Rider International

3.) FP Commercial Supplies-Services T&Cs (August 2023)

4.) Required item(s) listed below:

1. QTY2 - Customized air-bearing Rotary Table.

Base Unit Specifications:

• Total Indicated runout of
  
• 145 +/- 20 mm diameter rotary surface.


• Total stack height including customization not to exceed 130mm.

1. QTY 2 – Customization of Rotary table:

• Addition of commutator ring with 30min to 36 channels


• Top rotation table to have connectors for commutator ring along the circumference.


• Top rotary plate modified for mount hole pattern for PI-USA N565 stage, centered. These two stack stages have 15 wires each which will connector to the commutator ring.


• Base plate of Rotary Table to have commutator ring ‘flying leads’ exist the side of the plate.


• Base plate to have a flatness of
  
• Base plate to have a thru-hole mount pattern that is 154mm x154mm for M6 SHCS.

1. QTY2 - EPICS compatible Motion Controller.

• 10meter extension cables


• Input for pressure switch to shut down system for machine protection.

Quote is for product only; no on-site services permitted.

Source selection will be based on Lowest Priced Technically Acceptable and best Lead-Time.

Please provide a price and lead time quotation by COB 2/26/2025.

Technical evaluation criteria are as follows:

1. QTY2 - Customized air-bearing Rotary Table.

Base Unit Specifications:

• Total Indicated runout of
  
• 145 +/- 20 mm diameter rotary surface.


• Total stack height including customization not to exceed 130mm.

1. QTY 2 – Customization of Rotary table:

• Addition of commutator ring with 30min to 36 channels


• Top rotation table to have connectors for commutator ring along the circumference.


• Top rotary plate modified for mount hole pattern for PI-USA N565 stage, centered. These two stack stages have 15 wires each which will connector to the commutator ring.


• Base plate of Rotary Table to have commutator ring ‘flying leads’ exist the side of the plate.


• Base plate to have a flatness of
  
• Base plate to have a thru-hole mount pattern that is 154mm x154mm for M6 SHCS.

1. QTY2 - EPICS compatible Motion Controller.

• 10meter extension cables


• Input for pressure switch to shut down system for machine protection.

Send quote to emezzett@slac.stanford.edu

Is there any room for additional discount such as for Academic, ICPT, GSA, or Government Institutions?

Buy American Act Certification (BAA) applies to awards that are over $10,000.

Representations & Certifications International Rider is required. Once completed the Reps and Certs is valid for one year until renewal. If you have already completed one within the year, please disregard. Otherwise, please complete and return.

All subcontractors are required to register in the System for Award Management (www.sam.gov).

If possible, please provide a link to your webpage for published price list to substantiate for the prices quoted.

The resulting purchase order will be issued on a fixed price basis. SLAC National Accelerator Laboratory Terms and Conditions for Fixed Price Commercial Supplies and Services (Rev. August 2023) will be made a part of the resulting.

order.

Payment Terms will be NET-30

Freight terms will be FOB Destination Prepaid and Add

You are requested to mark and identify proprietary/confidential information provided in response to the solicitation.

Contact me directly with any questions.

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