Boy Custom Design Screws

Whether you are looking to speed up cycle times, increase melt quality and consistency, achieve a more homogenous melt, or enhance material quality by reducing over shearing or long residence times, SFP can provide a custom design screw to solve even the most difficult problems.

Our Commitment
Nothing is more important than getting it right the first time. That's why our Design Team will do whatever it takes to custom design the best screw, barrel, or complete injection unit to match your specific application. We take pride in the ability to make any screw. Our experienced Design Team is dedicated to providing exceptional design and technical support to keep your molding operations running efficiently. When you need assistance, we're here to make your job easier. Let us know your specific needs and we can custom design a screw to fit your specific application. For quicker response, use the quickQuote link below.

Quality Craftsmanship
All Services for Plastics, Inc. custom design screws are manufactured from the highest-quality materials to withstand the stringent demands your operations require. Our screws represent the finest workmanship in the industry. Each custom designed screw is precisely manufactured to your specifications using the latest technology and quality inspected to ensure optimum performance. We inspect every screw for accurate gauging of all dimensions and evaluate the screw's appearance and performance requirements by performing quality checks to verify:

Production Capabilities
We can manufacture any screw from 1/2" (12mm) to 10" (254mm) OD up to 25' in length.
Our screws are available in a variety of tool steels to meet your specific requirements.

BASE MATERIALS

4140 Alloy Steel
Nitralloy 135m
H-13 Tool Steel
D-2 Tool Steel
CPM - 9V
CPM - 10V
CPM - 420V
17-4 Stainless
Cru-Wear
Other choice tool steels

FLIGHT HARD FACINGS

Stellite #6
Stellite #12
Colmonoy #56
Colmonoy #57
Colmonoy #83
Colmonoy #88

SURFACE HARDENINGS

Nitriding
D-Gun
Industrial Hard Chrome Plating
Carbide Encapsulating
Titanium Nitriding
Armoloy

Plastic Materials
Custom Design Screws are available for use with the following materials.

ABBREV		POLYMER
ABS		acrylonitrile-butadiene-styrene
ASA		acrylate-styrene-acrylonitrile
ATH		aluminum trihydrate
BDS		butadiene-styrene block copolymer
BMC		bulk molding compound
BOPP		biaxially oriented polypropylene
BR		butadiene rubber
CA		cellulose acetate
CAB		cellulose acetate-butyrate
CAP		cellulose acetate propionate
CE		cellulose
CMC		carboxymethyl cellulose
CN		cellulose nitrate
CP		cellulose propionate
CSM		chlorosulphonated polyethylene
DMC		dough molding compound
TPX		polymethyl pentene copolymer
UHMWPE		ultra high molecular weight PE
VCM		vinyl chloride monomer
ECTFE		ethylene chlorotrifluoro ethylene
EPDM		ethylene-propylene-diene monomer
EPM		ethylene-propylene rubber
EPR		ethylene-propylene rubber

ABBREV		POLYMER
EPS		expanded polystyrene
EVOH		ethylene vinyl acetate
FEP		fluorinated ethylene-propylene
FRP		fibre reinforced polyester/plastics
GMT		glass mat thermoplastic
GPPS		general purpose polystyrene
GRP		glass reinforced plastic
HDPE		high density polyethylene
HEMA		hydroxyethyl metharcylate polymer
HIPS		high impact polystyrene
LCP		liquid crystal polymer
LDPE		low density polyethylene
LLDPE		linear low density polyethylene
MBS		methacrylate-butadiene-styrene
MDPE		medium, density polyethylene
MF		melamine formaldehyde
NBR		acrylonitrile butadiene rubber
OPP		oriented polypropylene
PA		polyamide = nylon
PAA		polaryl amide
PA 6		nylon 6
PA 66		nylon 66
PA 46		nylon 46

ABBREV		POLYMER
PA610		nylon 610
PA66/610		nylon 66/610 copolymer
PA11		nylon 11
PA12		nylon 12
PAI		polyamide imide
PAN		polyacrylonitrile
PB		polybutylene
PBT		polybutylene terephthalate
PC		polycarbonate
PE		polyethylene
PEBA		polyether block amide
PEEK		polyetheretherketone
PEEL		polyester elastomer
PEI		polyester imide
PEK		polyetherketone
PES		polyether sulphone
PETP		polyethylene terephthalate
PETG		PET copolymer
PF		phenol formaldehyde
PFA		perfluoro alkocyl alkane
PHB		polyhydroxbutyrate
PI		polyimide
PIR		polyisocyanurate rigid (foam)

ABBREV		POLYMER
PMMA		polymethyl methacrylate
PMP		polymethyl pentene
POM		polyoxymethylene
PP		polypropylene
PPE		polypropylene ether
PPO		polypropylene sulphide
PPSS		polypropylene sulphide sulphone
PS		polystyrene
PSU		polysulphone
PTFE		polytetrafluoroethylene
PTMT		polytetramethylene terephthalate
PUR		polyurethane
PVA		polyvinyl acetate
PVB		polyvinyl butytral
PVC		polyvinyl chloride
PVCC		chlorinated polyvinyl chloride
PVCP		polyvinyl chloride plasticized
PVCU		polyvinyl chloride unplasticized
PVDC		polyvinylidene chloride

ABBREV		POLYMER
PVDF		polyvinylidene fluoride
PVF		polyvinylfluoride
PVOH		polyvinyl alcohol
SAN		styrene acrylonitrile
SRB		styrene-butadiene-styrene
SEBS		styrene-ethylene-butadiene-styrene
SIS		styrene-isoprene-styrene
SMA		styrene maleic anhyride
SMC		sheet molding compound
SRP		self reinforcing polymer
TPE		thermoplastic elastomer
TPO		thermoplastic olefin
TPR		thermoplastic rubber
TPS		toughened polystyrene
TPU		thermoplastic polyurethane (rubber)
TPUR		thermoplastic polyurethane (rubber)
UF		urea formaldehyde
VC		vinyl chloride
XLPE		cross-linked polyethylene

Our Guarantee
SFP guarantees our barrels and screws to be free of defective materials and workmanship for 90 days (industry standard).
We also offer extended life warranties on same materials.

Plastication Components
In addition to Custom Design Screws and Barrels, we also offer Custom Design Screw Tip Assemblies, Nozzle Tips, End Caps, and Tie Bars. SFP provides all of the products you need to make your molding processes run efficiently and cost effectively. Click the link below to view the complete SFP Product Index.