Amendment 0004 -- extruder.pdf

(x)

12639520Q0214 x x copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted ; or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR

OFFER. If by virtue of this amendment you desire to change an offer already submitted , such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

APHIS-MN-126395

08/31/2020

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended , by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

USDA APHIS

250 MARQUETTE AVE

SUITE 410

MINNEAPOLIS MN 55401

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION

NO.

5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

06/30/2020

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

Tax ID Number: Not Available

DUNS Number: Not Available

This amendment is written to incorporate a revised statement of work/specifications into the solicitation. The SOW on page 3 is replaced with the attached SOW. The due date for receipt of quotes is extended to 09/11/2020 at noon Central Time.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

JAMES G. ROLOFF

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9 A or 10A, as heretofore changed, remains unchanged and in full force and effect .

08/31/2020

Solicitation 12639520Q0214 Amendment 0003, 08/31/2020

1.0 STATEMENT OF WORK

1.1 Background

The U.S. Department of Agriculture, Animal and Plant Health Inspection Service, Plant Protection and Quarantine (PPQ) Program seeks a 16mm, twin-screw extruder for use in a laboratory setting at Otis Joint Base Cape Cod, MA. It will be used in support of the development of an artificial diet for the invasive tree pest Emerald Ash Borer, Agrilus planipennis (EAB).

Development of an artificial diet is a critical step in allowing the EAB biocontrol program to meet their insect rearing goals year-round and remove the dependency on natural food sources that are difficult to obtain in the winter months.

1.2 Objectives

The EAB artificial diet appears to be most suitable when it is thin, dry, and tough in texture, simulating the inner bark of an ash tree where EAB typically feeds. Studies demonstrated that EAB larvae die or develop poorly when fed a diet containing more than 55% moisture, and that the optimal moisture content for rearing EAB larvae is 48 – 50%. Despite many attempts, PPQ has not been able to roll out or press low-moisture diet by hand or small presses into a thin, cohesive sheet with a leathery texture, which our research predicts are the most suitable properties for rearing EAB larvae.

The twin-screw extruder must be capable of mixing and extruding tough, dough-like products into a variety of forms and textures, critical for EAB diet production. In addition to controlling moisture level and texture, the extruder must enable manipulation of nutrients and bulking agents in the diet for research purposes and produce it at the desired moisture level. Inhibition of microbial growth is also an important goal, to minimize both diet degradation and worker exposure, and is achievable by cooking the diet at or above 120°C. The extruder must also be capable of producing a specialized diet for the adults in sheets less than one mm thick, simulating the form of their natural ash-leaf food.

1.3 Other Requirements

The 16mm twin-screw extruder must have:

• a process length of 40 L/D,

• speed capacity to 1,000 rpm

• capacity of manufacturing thermoplastic compounds at rates up to 10kg/h

• minimal sample material of 150g

• nitriding steel barrel material

• digital servo drive system with constant torque

• shafts with suitable screw configuration for achieving target diets

• a main feed port and three multi-purpose top feed/vent injection ports

• an atmospheric vent adapter

• a pressure measurement system upstream die (100 bar)

• strand die with single 3 mm diameter hole

• an electronic control system

• touch-screen control panel

Solicitation 12639520Q0214 Amendment 0003, 08/31/2020

• toolkit and English manual

• supporting bench

• data logging software (extruder rpm, torque, barrel temperatures °C, pressure, feeder rate)

• gravimetric twin-screw feeder, controls built into main control

• closed-loop water chiller to supply extruder, with hoses and electrical controls

• liquid feeding system with data logging

• die adapter

• tape/sheet/ribbon die, 150 mm, adjustable die gap o die gap adjustor 0.5 – 4.0 mm

• air knife to achieve smooth sheet contact with chill surface

• spare parts (2 barrel heaters, 1 die cartridge heater, 1 solid state relay, 1 control thermocouple, 2 gearbox lip seals, 2 screw gland bushes, set of barrel screws)

• feeder stand

• installation of TSE (check delivery for completeness and free of damage, assembly, instruction on handling and operation, technical test)

The unit’s capacity must be sufficiently small to support research and methods development in a confined space, yet also be capable of processing large enough quantities of diet for mid-scale trials in an insect rearing facility.