Our New Hampton Metal Fabrication brand has been trusted for decades to engineer forms for a wide variety of manhole products, including eccentric and concentric cone forms, slab top forms, one-and-two-piece manhole base forms, one-and-two-piece manhole riser forms, manhole drop base and manhole drop riser form equipment, battery grade ring forms, single pour manhole grade ring forms and manhole joint rings.
Forming System Highlights
- 24”-144” Diameter forms available
- One piece, two piece or roll back option available on any manhole forms
- Manual, Quick Strip, or hydraulic collapsing cores available
- Step break off inserts available if required
- Many lift insert options available
- Block-outs available as needed. Bolt-on steel or magnetic UHMW.
- Catwalks available on any style form where applicable
- Customer specified joint as needed. Joints can be steel on steel for the ID and OD or rubber seal ID and OD.
Manhole Base Forms
Base Forms
- 24” – 144” Diameter Forms
- Collapsing Cores
- Quick Strip & Quick Strip Roll Back Forms
- One or Two Piece Forms
- Quick Pin Rollover Trunnions
Manhole Cone Forms
Cone Forms
- 36” – 72” Diameter Forms
- Eccentric & Concentric Cones
- Collapsing Cores & Quick Strip Solid Tapered Cores
- & Quick Strip Roll Back Forms
Manhole Riser Forms
Riser Forms
- 24” – 144” Diameter equipment
- Collapsing Cores
- Quick Strip & Quick Strip Roll Back Forms
- One or Two Piece Forms
We Have Battery Grade Ring Forms Too!
See our wide range of single pour and battery-style wetcast grade ring forming systems for both round (manhole grade ring forms) and rectangular (catch basin grade ring forms). Learn more.
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