Swab Mandrels - Oil States International, Inc.

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Swab Mandrels

Oil States Regal manufactures steel swab mandrels, available in sizes 1" to 2-1/2". Mandrels are machined from one solid piece of bar stock. Removal of the bottom nut allows for easy installation and removal of swab cups by the operator.

Swab Mandrel Reference Charts

All dimensions given in INCHES unless otherwise specified

ST Series Mandrel
ST Series

ST Series Slip Type Swab Mandrels
Size	Part Number	Mandrel Only	Spacer Ring	Bottom Nut
1-1/4" ST	125-STR	125-ST MANDREL	125-ST RING	125-ST NUT
1-1/2" ST	150-ST-R	150-ST MANDREL	150-ST RING	150-ST NUT
2" ST	200-ST-R	200-ST MANDREL	200-ST RING	200-ST NUT
2-1/2" ST	250-ST-R	250-ST MANDREL	250-ST RING	250-ST NUT

Model 50 Type Swab Mandrels
Size	Part Number	Mandrel Only	Top Section	Spacer Ring	Bottom Nut
1-1/2" Model 50	T50-150	T50-150 MANDREL	T50-150 TOP	150-ST RING	150-ST NUT
2" Model 50	T50-200	T50-200 MANDREL	T50-200 TOP	200-ST RING	200-ST NUT
2-1/2" Model 50	T50-250	T50-250 MANDREL	T50-250 TOP	250-ST RING	250-ST NUT

The Model 50 Series Swab Mandrel utilizes a ball and integral seat construction with a hollow mandrel to facilitate a free fall in the fluid.

Model 50 Mandrel
Model 50

SKJ Series

KJM Series

SKJ & KJM Series Knuckle Joint Swab Mandrels

Part
Number

Mandrel
w/Nut

Spacing
Ring

Top Section
3/4" Pin

Middle
Mandrel

Bottom
Mandrel

SKJ-20
2 CUP

SKJ-20
MANDREL

200-ST
RING

SKJ-TOP

SKJ-25
2 CUP

SKJ-25
MANDREL

250-ST
RING

SKJ-TOP

SKJ-45
1 CUP

SKJ-45
MANDREL

SKJ-45
RING

SKJ-55
TOP

SKJ-45
2 CUP

SKJ-45
MANDREL

SKJ-45
RING

SKJ-55
TOP

SKJ-55
1 CUP

SKJ-55
MANDREL

SKJ-55
RING

SKJ-55
TOP

SKJ-55
2 CUP

SKJ-55
MANDREL

SKJ-55
RING

SKJ-55
TOP

KJM-20

KJM-20
TOP

KJM-20
UPPER

KJM-20
LOWER

KJM-25

KJM-25
TOP

KJM-25
UPPER

KJM-25
LOWER

The Single Knuckle Joint Swab Mandrel is made from 100% machined alloys for easy change out of one or more cups.

The Knuckle Joint Swab Mandrel is available in heat treated cast steel. These swabs allow a quick cup change with no threaded parts.

Spacer Sleeves for Single/Dual Knuckle Joint Mandrels

Swab Cup Size

Part Number

1-1/2"

153-SL

2"

203-SL

2-1/2"

253-SL

4-1/2"

453-SL

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